TY  - JOUR
AU  - Andjelković, Ljubica
AU  - Jeremić, Dejan
AU  - Milenković, Milica R.
AU  - Radosavljević, Jelena
AU  - Vulić, Predrag J.
AU  - Pavlović, Vladimir
AU  - Manojlović, Dragan
AU  - Nikolić, Aleksandar S.
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5327
AB  - A simple organic-phase synthesis process was used to produce bare NiFe2O4 and ZnFe2O4 and core-shell ZnFe2O4@NiFe2O4 ferrite nanoparticles. X-ray powder diffractograms for all investigated powders show characteristic peaks of a spinel cubic structure without a secondary phase. Transmission electron microscopy (TEM) indicated the presence of nanoparticles that are smaller than 20 nm. The release of divalent ions (Ni2+ and Zn2+) from synthesized nanoparticles that were dispersed in saline solution, phosphate-buffered saline (PBS) and human serum, as determined by the inductively coupled plasma mass spectrometry (ICP-MS) method, was lower than 2 wt %. These results demonstrate the stability of the investigated nanoparticles in biologically relevant media and exclude the toxicity of Ni2+ and Zn2+ due to metal ion release, thereby opening a broad range of (bio)medical applications.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Synthesis, characterization and in vitro evaluation of divalent ion release from stable NiFe2O4, ZnFe2O4 and core-shell ZnFe2O4@NiFe2O4 nanoparticles
EP  - 3533
IS  - 3
SP  - 3528
VL  - 46
DO  - 10.1016/j.ceramint.2019.10.068
ER  - 

@article{
author = "Andjelković, Ljubica and Jeremić, Dejan and Milenković, Milica R. and Radosavljević, Jelena and Vulić, Predrag J. and Pavlović, Vladimir and Manojlović, Dragan and Nikolić, Aleksandar S.",
year = "2020",
abstract = "A simple organic-phase synthesis process was used to produce bare NiFe2O4 and ZnFe2O4 and core-shell ZnFe2O4@NiFe2O4 ferrite nanoparticles. X-ray powder diffractograms for all investigated powders show characteristic peaks of a spinel cubic structure without a secondary phase. Transmission electron microscopy (TEM) indicated the presence of nanoparticles that are smaller than 20 nm. The release of divalent ions (Ni2+ and Zn2+) from synthesized nanoparticles that were dispersed in saline solution, phosphate-buffered saline (PBS) and human serum, as determined by the inductively coupled plasma mass spectrometry (ICP-MS) method, was lower than 2 wt %. These results demonstrate the stability of the investigated nanoparticles in biologically relevant media and exclude the toxicity of Ni2+ and Zn2+ due to metal ion release, thereby opening a broad range of (bio)medical applications.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Synthesis, characterization and in vitro evaluation of divalent ion release from stable NiFe2O4, ZnFe2O4 and core-shell ZnFe2O4@NiFe2O4 nanoparticles",
pages = "3533-3528",
number = "3",
volume = "46",
doi = "10.1016/j.ceramint.2019.10.068"
}

Andjelković, L., Jeremić, D., Milenković, M. R., Radosavljević, J., Vulić, P. J., Pavlović, V., Manojlović, D.,& Nikolić, A. S.. (2020). Synthesis, characterization and in vitro evaluation of divalent ion release from stable NiFe2O4, ZnFe2O4 and core-shell ZnFe2O4@NiFe2O4 nanoparticles. in Ceramics International
Elsevier Sci Ltd, Oxford., 46(3), 3528-3533.
https://doi.org/10.1016/j.ceramint.2019.10.068

Andjelković L, Jeremić D, Milenković MR, Radosavljević J, Vulić PJ, Pavlović V, Manojlović D, Nikolić AS. Synthesis, characterization and in vitro evaluation of divalent ion release from stable NiFe2O4, ZnFe2O4 and core-shell ZnFe2O4@NiFe2O4 nanoparticles. in Ceramics International. 2020;46(3):3528-3533.
doi:10.1016/j.ceramint.2019.10.068 .

Andjelković, Ljubica, Jeremić, Dejan, Milenković, Milica R., Radosavljević, Jelena, Vulić, Predrag J., Pavlović, Vladimir, Manojlović, Dragan, Nikolić, Aleksandar S., "Synthesis, characterization and in vitro evaluation of divalent ion release from stable NiFe2O4, ZnFe2O4 and core-shell ZnFe2O4@NiFe2O4 nanoparticles" in Ceramics International, 46, no. 3 (2020):3528-3533,
https://doi.org/10.1016/j.ceramint.2019.10.068 . .

TY  - JOUR
AU  - Božanić, Milenka Lj
AU  - Dojčinović, Biljana
AU  - Zivić, Miroslav Z.
AU  - Marković, Zoran
AU  - Manojlović, Dragan
AU  - Živić, Ivana
PY  - 2019
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4974
AB  - Trout farms are one of the major sources of pollution of highland streams and rivers. Since river sediment burdened with organic pollution binds greater amounts of heavy metals we investigated the influence of the trout farm on the accumulation of metals in the sediment, water and Ephemera danica larvae. Research was conducted seasonally (April, July, and October of 2015 and January of 2016) at one control locality (SK1) and three localities downstream from the farm (SK2-SK4). In agreement with the hypothesis the fish farm discharge induced localized and statistically significant increase of concentrations of Fe, Cu, Cr-,Cr- Ni, Pb and Cd in sediment and E. danica larvae, but not in water at locality SK2 just below the fish farm indicating that sediment is the main source of heavy metals for this organism. However, according to the values of Biota sediment accumulation factor (BSAF) only metals with low sediment concentrations (As, Cd and Cu) accumulated in the larvae. Moreover, BASF values for toxic metals (As, Cd and Cr) showed negative correlation with their concentrations in sediment indicating existence of defense mechanisms in E. danica against assimilation of these metals in high concentrations lethal for it. On the other hand, BSAF values for essential microelements (Cu and Fe) were positively correlated with their sediment concentrations. In conclusion the trout farm induced accumulation of heavy metals in river sediment and E. danica larvae proved to be a good bioindicators of the pollution of river systems by As, Cd and Cu.
PB  - Edp Sciences S A, Les Ulis Cedex A
T2  - Knowledge and Management of Aquatic Ecosystems
T1  - Bioaccumulation of heavy metals in Ephemera danica larvae under influence of a trout farm outlet waters
IS  - 420
DO  - 10.1051/kmae/2019040
ER  - 

@article{
author = "Božanić, Milenka Lj and Dojčinović, Biljana and Zivić, Miroslav Z. and Marković, Zoran and Manojlović, Dragan and Živić, Ivana",
year = "2019",
abstract = "Trout farms are one of the major sources of pollution of highland streams and rivers. Since river sediment burdened with organic pollution binds greater amounts of heavy metals we investigated the influence of the trout farm on the accumulation of metals in the sediment, water and Ephemera danica larvae. Research was conducted seasonally (April, July, and October of 2015 and January of 2016) at one control locality (SK1) and three localities downstream from the farm (SK2-SK4). In agreement with the hypothesis the fish farm discharge induced localized and statistically significant increase of concentrations of Fe, Cu, Cr-,Cr- Ni, Pb and Cd in sediment and E. danica larvae, but not in water at locality SK2 just below the fish farm indicating that sediment is the main source of heavy metals for this organism. However, according to the values of Biota sediment accumulation factor (BSAF) only metals with low sediment concentrations (As, Cd and Cu) accumulated in the larvae. Moreover, BASF values for toxic metals (As, Cd and Cr) showed negative correlation with their concentrations in sediment indicating existence of defense mechanisms in E. danica against assimilation of these metals in high concentrations lethal for it. On the other hand, BSAF values for essential microelements (Cu and Fe) were positively correlated with their sediment concentrations. In conclusion the trout farm induced accumulation of heavy metals in river sediment and E. danica larvae proved to be a good bioindicators of the pollution of river systems by As, Cd and Cu.",
publisher = "Edp Sciences S A, Les Ulis Cedex A",
journal = "Knowledge and Management of Aquatic Ecosystems",
title = "Bioaccumulation of heavy metals in Ephemera danica larvae under influence of a trout farm outlet waters",
number = "420",
doi = "10.1051/kmae/2019040"
}

Božanić, M. L., Dojčinović, B., Zivić, M. Z., Marković, Z., Manojlović, D.,& Živić, I.. (2019). Bioaccumulation of heavy metals in Ephemera danica larvae under influence of a trout farm outlet waters. in Knowledge and Management of Aquatic Ecosystems
Edp Sciences S A, Les Ulis Cedex A.(420).
https://doi.org/10.1051/kmae/2019040

Božanić ML, Dojčinović B, Zivić MZ, Marković Z, Manojlović D, Živić I. Bioaccumulation of heavy metals in Ephemera danica larvae under influence of a trout farm outlet waters. in Knowledge and Management of Aquatic Ecosystems. 2019;(420).
doi:10.1051/kmae/2019040 .

Božanić, Milenka Lj, Dojčinović, Biljana, Zivić, Miroslav Z., Marković, Zoran, Manojlović, Dragan, Živić, Ivana, "Bioaccumulation of heavy metals in Ephemera danica larvae under influence of a trout farm outlet waters" in Knowledge and Management of Aquatic Ecosystems, no. 420 (2019),
https://doi.org/10.1051/kmae/2019040 . .

TY  - JOUR
AU  - Dulić, Zorka
AU  - Živić, Ivana
AU  - Pergal, Marija V.
AU  - Zivić, Miroslav
AU  - Stanković, Marko
AU  - Manojlović, Dragan
AU  - Marković, Zoran
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4754
AB  - The aim of this study was to assess the accumulation and seasonal variations of 20 toxic and trace elements in the abdominal and dorsal muscle (DM), liver and gut contents (GCs) of Cyprinus carpio, and in the sediments and zooplankton from semi-intensive aquaculture ponds during a six-month production season (from May to October). Sediments showed the highest concentrations of the measured elements, followed by zooplankton, fish GCs and livers, while the lowest levels were present in fish muscles. Correspondence analysis revealed that the elemental composition of the fish GCs was mostly similar to that of the sediment and zooplankton. The element concentrations of carp liver and muscles were more similar to each other. Overall, the results indicate that fish liver was the main target organ accumulating Cu, Se and Zn, regardless of their initial amounts in the environment. A seasonal decrease of a range of elements in fish liver (Al, Co, Fe, Li, Mn, Ni, Pb and Sr) was evident towards the end of the investigation period. In addition, the fish DM showed a seasonal accumulation of Sr and Li. However, toxic elements i.e. As, B, Ba Hg and V did not show such a seasonal variation, and were evenly distributed between fish liver and muscles. The concentrations of some elements, such as As, in fish tissues were similar or even higher than in literature data from polluted sites, but none of them exceeded the maximum acceptable concentrations prescribed by Serbian legislation or by FAO or EU regulation.
PB  - Edp Sciences S A, Les Ulis Cedex A
T2  - Annales De Limnologie-International Journal of Limnology
T1  - Accumulation and seasonal variation of toxic and trace elements in tissues of Cyprinus carpio from semi-intensive aquaculture ponds
VL  - 54
DO  - 10.1051/limn/2017036
ER  - 

@article{
author = "Dulić, Zorka and Živić, Ivana and Pergal, Marija V. and Zivić, Miroslav and Stanković, Marko and Manojlović, Dragan and Marković, Zoran",
year = "2018",
abstract = "The aim of this study was to assess the accumulation and seasonal variations of 20 toxic and trace elements in the abdominal and dorsal muscle (DM), liver and gut contents (GCs) of Cyprinus carpio, and in the sediments and zooplankton from semi-intensive aquaculture ponds during a six-month production season (from May to October). Sediments showed the highest concentrations of the measured elements, followed by zooplankton, fish GCs and livers, while the lowest levels were present in fish muscles. Correspondence analysis revealed that the elemental composition of the fish GCs was mostly similar to that of the sediment and zooplankton. The element concentrations of carp liver and muscles were more similar to each other. Overall, the results indicate that fish liver was the main target organ accumulating Cu, Se and Zn, regardless of their initial amounts in the environment. A seasonal decrease of a range of elements in fish liver (Al, Co, Fe, Li, Mn, Ni, Pb and Sr) was evident towards the end of the investigation period. In addition, the fish DM showed a seasonal accumulation of Sr and Li. However, toxic elements i.e. As, B, Ba Hg and V did not show such a seasonal variation, and were evenly distributed between fish liver and muscles. The concentrations of some elements, such as As, in fish tissues were similar or even higher than in literature data from polluted sites, but none of them exceeded the maximum acceptable concentrations prescribed by Serbian legislation or by FAO or EU regulation.",
publisher = "Edp Sciences S A, Les Ulis Cedex A",
journal = "Annales De Limnologie-International Journal of Limnology",
title = "Accumulation and seasonal variation of toxic and trace elements in tissues of Cyprinus carpio from semi-intensive aquaculture ponds",
volume = "54",
doi = "10.1051/limn/2017036"
}

Dulić, Z., Živić, I., Pergal, M. V., Zivić, M., Stanković, M., Manojlović, D.,& Marković, Z.. (2018). Accumulation and seasonal variation of toxic and trace elements in tissues of Cyprinus carpio from semi-intensive aquaculture ponds. in Annales De Limnologie-International Journal of Limnology
Edp Sciences S A, Les Ulis Cedex A., 54.
https://doi.org/10.1051/limn/2017036

Dulić Z, Živić I, Pergal MV, Zivić M, Stanković M, Manojlović D, Marković Z. Accumulation and seasonal variation of toxic and trace elements in tissues of Cyprinus carpio from semi-intensive aquaculture ponds. in Annales De Limnologie-International Journal of Limnology. 2018;54.
doi:10.1051/limn/2017036 .

Dulić, Zorka, Živić, Ivana, Pergal, Marija V., Zivić, Miroslav, Stanković, Marko, Manojlović, Dragan, Marković, Zoran, "Accumulation and seasonal variation of toxic and trace elements in tissues of Cyprinus carpio from semi-intensive aquaculture ponds" in Annales De Limnologie-International Journal of Limnology, 54 (2018),
https://doi.org/10.1051/limn/2017036 . .

TY  - JOUR
AU  - Savić-Bisercić, Marjetka
AU  - Pezo, Lato
AU  - Sredović-Ignjatović, Ivana
AU  - Ignjatović, Ljubiša M.
AU  - Savić, Andrija
AU  - Jovanović, Uroš D.
AU  - Andrić, Velibor
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4030
AB  - Two mechanical extraction techniques were used for the extraction of environmentaly interesting components of coal fly ash: shaking, during which the extraction process lasted from 6 up to 24 h, and sonication that lasted from 15 up to 60 min, using water as extractant. The concentration of anions in fly ash extracts was determined by ion chromatography, while atomic absorption spectrometry was used for determination of: As, Pb, Cd, Ni, Cr, Zn, Cu, Fe, Mn and Al. The ultrasonication yielded slightly higher amounts of extracted anions as well as Pb, Al, Mn and Fe cations, while shaking-assisted extraction was more efficient for the Cr, As, Zn and Ni ions. The changes in pH value, particle size distribution within colloid solution, zeta potential and conductivity during ultrasound-assisted extraction were measured in order to explain changes that occur on the surface of fly ash particles contacting water and different processes (adsorption, ion exchange and flocculation) that develop under natural conditions. Principal Component Analysis was used for assessing the effect of observed process parameters. It is essential to evaluate quantity of these elements leachable from coal fly ash into the surface waters in natural conditions in order to prevent contamination of the environment.
PB  - Srpsko hemijsko društvo, Beograd
T2  - JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
T1  - Ultrasound and shacking-assisted water-leaching of anions and cations from fly ash
EP  - 827
IS  - 7
SP  - 813
VL  - 81
DO  - 10.2298/JSC151222027B
ER  - 

@article{
author = "Savić-Bisercić, Marjetka and Pezo, Lato and Sredović-Ignjatović, Ivana and Ignjatović, Ljubiša M. and Savić, Andrija and Jovanović, Uroš D. and Andrić, Velibor",
year = "2016",
abstract = "Two mechanical extraction techniques were used for the extraction of environmentaly interesting components of coal fly ash: shaking, during which the extraction process lasted from 6 up to 24 h, and sonication that lasted from 15 up to 60 min, using water as extractant. The concentration of anions in fly ash extracts was determined by ion chromatography, while atomic absorption spectrometry was used for determination of: As, Pb, Cd, Ni, Cr, Zn, Cu, Fe, Mn and Al. The ultrasonication yielded slightly higher amounts of extracted anions as well as Pb, Al, Mn and Fe cations, while shaking-assisted extraction was more efficient for the Cr, As, Zn and Ni ions. The changes in pH value, particle size distribution within colloid solution, zeta potential and conductivity during ultrasound-assisted extraction were measured in order to explain changes that occur on the surface of fly ash particles contacting water and different processes (adsorption, ion exchange and flocculation) that develop under natural conditions. Principal Component Analysis was used for assessing the effect of observed process parameters. It is essential to evaluate quantity of these elements leachable from coal fly ash into the surface waters in natural conditions in order to prevent contamination of the environment.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "JOURNAL OF THE SERBIAN CHEMICAL SOCIETY",
title = "Ultrasound and shacking-assisted water-leaching of anions and cations from fly ash",
pages = "827-813",
number = "7",
volume = "81",
doi = "10.2298/JSC151222027B"
}

Savić-Bisercić, M., Pezo, L., Sredović-Ignjatović, I., Ignjatović, L. M., Savić, A., Jovanović, U. D.,& Andrić, V.. (2016). Ultrasound and shacking-assisted water-leaching of anions and cations from fly ash. in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
Srpsko hemijsko društvo, Beograd., 81(7), 813-827.
https://doi.org/10.2298/JSC151222027B

Savić-Bisercić M, Pezo L, Sredović-Ignjatović I, Ignjatović LM, Savić A, Jovanović UD, Andrić V. Ultrasound and shacking-assisted water-leaching of anions and cations from fly ash. in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY. 2016;81(7):813-827.
doi:10.2298/JSC151222027B .

Savić-Bisercić, Marjetka, Pezo, Lato, Sredović-Ignjatović, Ivana, Ignjatović, Ljubiša M., Savić, Andrija, Jovanović, Uroš D., Andrić, Velibor, "Ultrasound and shacking-assisted water-leaching of anions and cations from fly ash" in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY, 81, no. 7 (2016):813-827,
https://doi.org/10.2298/JSC151222027B . .

TY  - JOUR
AU  - Tasić, Aleksandra M.
AU  - Sredović-Ignjatović, Ivana
AU  - Ignjatović, Ljubiša M.
AU  - Duranović, Danijel
AU  - Antić, Mališa
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4046
AB  - Three different techniques were applied for the aqueous extraction of anions from coal and fly ash: rotary mixer-and ultrasonic-assisted extraction with different duration time, and microwave-assisted extraction at different temperatures. Validation showed that the ion-chromatographic method was suitable for the analysis of anions in coal and fly ash extracts. The variations in the amounts of anions using different extraction times during rotary-assisted extraction were minimal for all investigated anions. The efficiency of ultrasound-assisted extraction of anions from coal depended on the sonication time and was highest at 30 min. The ultrasound-assisted extraction was less efficient for the extraction of anions from fly ash than rotary-assisted extraction. Increase of temperature in the microwave-assisted extraction had a positive effect on the amounts of all anions extracted from coal and sulphate from fly ash, while the amounts of fluoride and chloride in fly ash extracts decreased. The microwave-assisted extraction of coal at 150 degrees C was compared with standard ASTM methods, and results were in good agreement only for chloride. Changes in the pH value and conductivity during ultrasound-assisted extraction were measured in order to explain changes on the surface of coal particles in contact with water and different processes that occur under environmental conditions.
PB  - Srpsko hemijsko društvo, Beograd
T2  - JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
T1  - Aqueous extraction of anions from coal and fly ash followed by ion-chromatographic determination
EP  - 1453
IS  - 12
SP  - 1441
VL  - 81
DO  - 10.2298/JSC160223086T
ER  - 

@article{
author = "Tasić, Aleksandra M. and Sredović-Ignjatović, Ivana and Ignjatović, Ljubiša M. and Duranović, Danijel and Antić, Mališa",
year = "2016",
abstract = "Three different techniques were applied for the aqueous extraction of anions from coal and fly ash: rotary mixer-and ultrasonic-assisted extraction with different duration time, and microwave-assisted extraction at different temperatures. Validation showed that the ion-chromatographic method was suitable for the analysis of anions in coal and fly ash extracts. The variations in the amounts of anions using different extraction times during rotary-assisted extraction were minimal for all investigated anions. The efficiency of ultrasound-assisted extraction of anions from coal depended on the sonication time and was highest at 30 min. The ultrasound-assisted extraction was less efficient for the extraction of anions from fly ash than rotary-assisted extraction. Increase of temperature in the microwave-assisted extraction had a positive effect on the amounts of all anions extracted from coal and sulphate from fly ash, while the amounts of fluoride and chloride in fly ash extracts decreased. The microwave-assisted extraction of coal at 150 degrees C was compared with standard ASTM methods, and results were in good agreement only for chloride. Changes in the pH value and conductivity during ultrasound-assisted extraction were measured in order to explain changes on the surface of coal particles in contact with water and different processes that occur under environmental conditions.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "JOURNAL OF THE SERBIAN CHEMICAL SOCIETY",
title = "Aqueous extraction of anions from coal and fly ash followed by ion-chromatographic determination",
pages = "1453-1441",
number = "12",
volume = "81",
doi = "10.2298/JSC160223086T"
}

Tasić, A. M., Sredović-Ignjatović, I., Ignjatović, L. M., Duranović, D.,& Antić, M.. (2016). Aqueous extraction of anions from coal and fly ash followed by ion-chromatographic determination. in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
Srpsko hemijsko društvo, Beograd., 81(12), 1441-1453.
https://doi.org/10.2298/JSC160223086T

Tasić AM, Sredović-Ignjatović I, Ignjatović LM, Duranović D, Antić M. Aqueous extraction of anions from coal and fly ash followed by ion-chromatographic determination. in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY. 2016;81(12):1441-1453.
doi:10.2298/JSC160223086T .

Tasić, Aleksandra M., Sredović-Ignjatović, Ivana, Ignjatović, Ljubiša M., Duranović, Danijel, Antić, Mališa, "Aqueous extraction of anions from coal and fly ash followed by ion-chromatographic determination" in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY, 81, no. 12 (2016):1441-1453,
https://doi.org/10.2298/JSC160223086T . .

TY  - JOUR
AU  - Tasić, Aleksandra M.
AU  - Sredović-Ignjatović, Ivana
AU  - Ignjatović, Ljubiša M.
AU  - Ilić, Marija A.
AU  - Antić, Mališa
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4047
AB  - The aim of this paper is to simulate leaching of metals from fly ash in different environmental conditions using ultrasound and microwave-assisted extraction techniques. Single-agent extraction and sequential extraction procedures were used to determine the levels of different metals leaching. The concentration of metals (Al, Fe, Mn, Cd, Co, Cr, Ni, Pb, Cu, As and Be) in fly ash extracts were measured by inductively coupled plasma-atomic emission spectrometry. Single-agent extractions of metals were conducted at sonication times of 10, 20, 30, 40 and 50 min. Single-agent extraction with deionized water was also performed by exposing samples to microwave radiation at temperature of 50 degrees C. The sequential extraction was conducted according to the BCR procedure which was modified and applied to study the partitioning of metals in coal fly ash. The microwave-assisted sequential extraction was performed at different extraction temperatures: 50, 100 and 150 degrees C. The partitioning of metals between the individual fractions was investigated and discussed. The efficiency of the extraction process for each step was examined. In addition, the results of the microwave-assisted sequential extraction are compared to the results obtained by standard ASTM method. The mobility of most elements contained in the fly ash is markedly pH sensitive.
PB  - Srpsko hemijsko društvo, Beograd
T2  - JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
T1  - Comparison of sequential and single extraction in order to estimate the environmental impact of metals from fly ash
EP  - 1096
IS  - 9
SP  - 1081
VL  - 81
DO  - 10.2298/JSC160307038T
ER  - 

@article{
author = "Tasić, Aleksandra M. and Sredović-Ignjatović, Ivana and Ignjatović, Ljubiša M. and Ilić, Marija A. and Antić, Mališa",
year = "2016",
abstract = "The aim of this paper is to simulate leaching of metals from fly ash in different environmental conditions using ultrasound and microwave-assisted extraction techniques. Single-agent extraction and sequential extraction procedures were used to determine the levels of different metals leaching. The concentration of metals (Al, Fe, Mn, Cd, Co, Cr, Ni, Pb, Cu, As and Be) in fly ash extracts were measured by inductively coupled plasma-atomic emission spectrometry. Single-agent extractions of metals were conducted at sonication times of 10, 20, 30, 40 and 50 min. Single-agent extraction with deionized water was also performed by exposing samples to microwave radiation at temperature of 50 degrees C. The sequential extraction was conducted according to the BCR procedure which was modified and applied to study the partitioning of metals in coal fly ash. The microwave-assisted sequential extraction was performed at different extraction temperatures: 50, 100 and 150 degrees C. The partitioning of metals between the individual fractions was investigated and discussed. The efficiency of the extraction process for each step was examined. In addition, the results of the microwave-assisted sequential extraction are compared to the results obtained by standard ASTM method. The mobility of most elements contained in the fly ash is markedly pH sensitive.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "JOURNAL OF THE SERBIAN CHEMICAL SOCIETY",
title = "Comparison of sequential and single extraction in order to estimate the environmental impact of metals from fly ash",
pages = "1096-1081",
number = "9",
volume = "81",
doi = "10.2298/JSC160307038T"
}

Tasić, A. M., Sredović-Ignjatović, I., Ignjatović, L. M., Ilić, M. A.,& Antić, M.. (2016). Comparison of sequential and single extraction in order to estimate the environmental impact of metals from fly ash. in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
Srpsko hemijsko društvo, Beograd., 81(9), 1081-1096.
https://doi.org/10.2298/JSC160307038T

Tasić AM, Sredović-Ignjatović I, Ignjatović LM, Ilić MA, Antić M. Comparison of sequential and single extraction in order to estimate the environmental impact of metals from fly ash. in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY. 2016;81(9):1081-1096.
doi:10.2298/JSC160307038T .

Tasić, Aleksandra M., Sredović-Ignjatović, Ivana, Ignjatović, Ljubiša M., Ilić, Marija A., Antić, Mališa, "Comparison of sequential and single extraction in order to estimate the environmental impact of metals from fly ash" in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY, 81, no. 9 (2016):1081-1096,
https://doi.org/10.2298/JSC160307038T . .

TY  - JOUR
AU  - Tasić, Aleksandra M.
AU  - Sredović-Ignjatović, Ivana
AU  - Ignjatović, Ljubiša M.
AU  - Andjelković, Ivan B.
AU  - Antić, Mališa
AU  - Rajaković, Ljubinka V.
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4163
AB  - This paper presents the extraction of major and trace elements from a coal sample, in deionized water, by using three different extraction techniques. Rotary mixing and ultrasonic extraction were examined for different extraction times, while the microwave-assisted extraction was performed at different temperatures. Metal concentrations (Na, K, Ca, Mg, Al, Fe, Mn, Be, Cd, Co, Cr, Hg, As, Ni, Se, Sb and Pb) in solution were determined employing inductively coupled plasma atomic emission spectrometry; whereas the results obtained for Na, K, Ca and Mg were compared employing ion chromatography. Comparing the rotary-and ultrasonic-assisted extractions, it was shown that the former technique was more efficient for the determination of Fe, Na and Pb, whereas the latter one proved more efficient for the determination of Co and Cr ions. Microwave-assisted extraction was shown to be the most efficient method for all the tested elements in coal. In addition, sequential extraction of the elements was realized using microwave digestion. The results of the sequential extraction experiments indicated associations of investigated elements with a mineral phase and organic matrix. Sequential extraction provided information on possible leaching of As, Cd, Co, Cr, Ni, Pb, Fe and Mn under environmental conditions.
PB  - Srpsko hemijsko društvo, Beograd
T2  - JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
T1  - Investigation of different extraction procedures for the determination of major and trace elements in coal by ICP-AES and ion chromatography
EP  - 417
IS  - 4
SP  - 403
VL  - 81
DO  - 10.2298/JSC150429078T
ER  - 

@article{
author = "Tasić, Aleksandra M. and Sredović-Ignjatović, Ivana and Ignjatović, Ljubiša M. and Andjelković, Ivan B. and Antić, Mališa and Rajaković, Ljubinka V.",
year = "2016",
abstract = "This paper presents the extraction of major and trace elements from a coal sample, in deionized water, by using three different extraction techniques. Rotary mixing and ultrasonic extraction were examined for different extraction times, while the microwave-assisted extraction was performed at different temperatures. Metal concentrations (Na, K, Ca, Mg, Al, Fe, Mn, Be, Cd, Co, Cr, Hg, As, Ni, Se, Sb and Pb) in solution were determined employing inductively coupled plasma atomic emission spectrometry; whereas the results obtained for Na, K, Ca and Mg were compared employing ion chromatography. Comparing the rotary-and ultrasonic-assisted extractions, it was shown that the former technique was more efficient for the determination of Fe, Na and Pb, whereas the latter one proved more efficient for the determination of Co and Cr ions. Microwave-assisted extraction was shown to be the most efficient method for all the tested elements in coal. In addition, sequential extraction of the elements was realized using microwave digestion. The results of the sequential extraction experiments indicated associations of investigated elements with a mineral phase and organic matrix. Sequential extraction provided information on possible leaching of As, Cd, Co, Cr, Ni, Pb, Fe and Mn under environmental conditions.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "JOURNAL OF THE SERBIAN CHEMICAL SOCIETY",
title = "Investigation of different extraction procedures for the determination of major and trace elements in coal by ICP-AES and ion chromatography",
pages = "417-403",
number = "4",
volume = "81",
doi = "10.2298/JSC150429078T"
}

Tasić, A. M., Sredović-Ignjatović, I., Ignjatović, L. M., Andjelković, I. B., Antić, M.,& Rajaković, L. V.. (2016). Investigation of different extraction procedures for the determination of major and trace elements in coal by ICP-AES and ion chromatography. in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
Srpsko hemijsko društvo, Beograd., 81(4), 403-417.
https://doi.org/10.2298/JSC150429078T

Tasić AM, Sredović-Ignjatović I, Ignjatović LM, Andjelković IB, Antić M, Rajaković LV. Investigation of different extraction procedures for the determination of major and trace elements in coal by ICP-AES and ion chromatography. in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY. 2016;81(4):403-417.
doi:10.2298/JSC150429078T .

Tasić, Aleksandra M., Sredović-Ignjatović, Ivana, Ignjatović, Ljubiša M., Andjelković, Ivan B., Antić, Mališa, Rajaković, Ljubinka V., "Investigation of different extraction procedures for the determination of major and trace elements in coal by ICP-AES and ion chromatography" in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY, 81, no. 4 (2016):403-417,
https://doi.org/10.2298/JSC150429078T . .

TY  - JOUR
AU  - Stanisić-Stojić, S.M.
AU  - Ignjatović, Ljubiša M.
AU  - Popov, S.
AU  - Skrivanj, S.
AU  - Djordjević, Aleksandar
AU  - Stojić, A.
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4109
AB  - An experiment was undertaken to evaluate the effect of liquid manure amendment on heavy metal accumulation in wheat and barley. For this purpose, both kinds of seedlings were grown simultaneously in a Petri dish, while wheat seedlings were also grown in pots containing unpolluted agricultural soil. All of the seedlings were irrigated with one of the three prepared solutions: artificial rainwater solution, heavy metal solution and liquid manure solution containing NH4NO3, H3PO4 and KOH along with equal amounts of heavy metals as in the second solution. Twenty days later, 1g of plant tissue was digested with the mixture of HNO3 and H2O2 for ICP-OES/HG-ICP-OES analysis. The results showed that the uptake of arsenic and mercury was highest for both plants grown in a Petri dish. Furthermore, the wheat grown in a Petri dish also had a high content of nickel, cadmium and copper, while the pot-grown wheat contained high amounts of iron and manganese, probably due to the adsorption of nickel, cadmium, copper and mercury on soil phases. The lower uptake of all heavy metals was observed after the amendment of liquid manure, with the exception of manganese in wheat and mercury in all plants.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Plant Biosystems
T1  - Heavy metal accumulation in wheat and barley: The effects of soil presence and liquid manure amendment
EP  - 110
IS  - 1
SP  - 104
VL  - 150
DO  - 10.1080/11263504.2014.976288
ER  - 

@article{
author = "Stanisić-Stojić, S.M. and Ignjatović, Ljubiša M. and Popov, S. and Skrivanj, S. and Djordjević, Aleksandar and Stojić, A.",
year = "2016",
abstract = "An experiment was undertaken to evaluate the effect of liquid manure amendment on heavy metal accumulation in wheat and barley. For this purpose, both kinds of seedlings were grown simultaneously in a Petri dish, while wheat seedlings were also grown in pots containing unpolluted agricultural soil. All of the seedlings were irrigated with one of the three prepared solutions: artificial rainwater solution, heavy metal solution and liquid manure solution containing NH4NO3, H3PO4 and KOH along with equal amounts of heavy metals as in the second solution. Twenty days later, 1g of plant tissue was digested with the mixture of HNO3 and H2O2 for ICP-OES/HG-ICP-OES analysis. The results showed that the uptake of arsenic and mercury was highest for both plants grown in a Petri dish. Furthermore, the wheat grown in a Petri dish also had a high content of nickel, cadmium and copper, while the pot-grown wheat contained high amounts of iron and manganese, probably due to the adsorption of nickel, cadmium, copper and mercury on soil phases. The lower uptake of all heavy metals was observed after the amendment of liquid manure, with the exception of manganese in wheat and mercury in all plants.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Plant Biosystems",
title = "Heavy metal accumulation in wheat and barley: The effects of soil presence and liquid manure amendment",
pages = "110-104",
number = "1",
volume = "150",
doi = "10.1080/11263504.2014.976288"
}

Stanisić-Stojić, S.M., Ignjatović, L. M., Popov, S., Skrivanj, S., Djordjević, A.,& Stojić, A.. (2016). Heavy metal accumulation in wheat and barley: The effects of soil presence and liquid manure amendment. in Plant Biosystems
Taylor & Francis Ltd, Abingdon., 150(1), 104-110.
https://doi.org/10.1080/11263504.2014.976288

Stanisić-Stojić S, Ignjatović LM, Popov S, Skrivanj S, Djordjević A, Stojić A. Heavy metal accumulation in wheat and barley: The effects of soil presence and liquid manure amendment. in Plant Biosystems. 2016;150(1):104-110.
doi:10.1080/11263504.2014.976288 .

Stanisić-Stojić, S.M., Ignjatović, Ljubiša M., Popov, S., Skrivanj, S., Djordjević, Aleksandar, Stojić, A., "Heavy metal accumulation in wheat and barley: The effects of soil presence and liquid manure amendment" in Plant Biosystems, 150, no. 1 (2016):104-110,
https://doi.org/10.1080/11263504.2014.976288 . .

TY  - JOUR
AU  - Pantelić, Nebojša
AU  - Stanković, Dalibor
AU  - Zmejkovski, Bojana B.
AU  - Kaludjerović, Goran N.
AU  - Sabo, Tibor J.
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4154
AB  - Oxidation-reduction properties of eleven gold(III) complexes with (S,S)-R(2)edda-type ligands was studied by cyclic and differential pulse voltammetry in DMSO. Series I: [AuCl2{(S,S)-R(2)eddip}]PF6, (S,S)-eddip = (S,S)-ethylenediamine-N,N'-di-2-propanoate, R = n-butyl, n-pentyl, isobutyl, isoamyl, cyclopentyl, 1-5; II: [AuCl2{(S,S)-R(2)eddch}]PF6, (S,S)-eddch = (S,S)-ethylenediamine-N,N'-di-2-(3-cyclohexyl)propanoate, R = methyl, ethyl, n-propyl, n-butyl, isobutyl, isoamyl, 6-11. Voltammograms in DMSO showed two successive irreversible reduction steps, where Au-I species were the final reduction product. Reduction potential values are in range from 116 to 156 mV (Ep(1)) and -520 to -572 mV (Ep(2)) for Series I and from 148 to 228 mV (Ep(1)) and -569 to -638 mV (Ep(2)) for Series II. In general, slightly easier reduction of complexes belonging to Series I (higher cytotoxicity) could be due to less steric hindrance around the gold center. Reduction potentials and anticancer activity are not in correlation.
PB  - Electrochemical Science Group, Beograd
T2  - International Journal of Electrochemical Science
T1  - Electrochemical properties of some gold(III) complexes with (S,S)-R(2)edda-type ligands
EP  - 1171
IS  - 2
SP  - 1162
VL  - 11
UR  - https://hdl.handle.net/21.15107/rcub_cherry_2060
ER  - 

@article{
author = "Pantelić, Nebojša and Stanković, Dalibor and Zmejkovski, Bojana B. and Kaludjerović, Goran N. and Sabo, Tibor J.",
year = "2016",
abstract = "Oxidation-reduction properties of eleven gold(III) complexes with (S,S)-R(2)edda-type ligands was studied by cyclic and differential pulse voltammetry in DMSO. Series I: [AuCl2{(S,S)-R(2)eddip}]PF6, (S,S)-eddip = (S,S)-ethylenediamine-N,N'-di-2-propanoate, R = n-butyl, n-pentyl, isobutyl, isoamyl, cyclopentyl, 1-5; II: [AuCl2{(S,S)-R(2)eddch}]PF6, (S,S)-eddch = (S,S)-ethylenediamine-N,N'-di-2-(3-cyclohexyl)propanoate, R = methyl, ethyl, n-propyl, n-butyl, isobutyl, isoamyl, 6-11. Voltammograms in DMSO showed two successive irreversible reduction steps, where Au-I species were the final reduction product. Reduction potential values are in range from 116 to 156 mV (Ep(1)) and -520 to -572 mV (Ep(2)) for Series I and from 148 to 228 mV (Ep(1)) and -569 to -638 mV (Ep(2)) for Series II. In general, slightly easier reduction of complexes belonging to Series I (higher cytotoxicity) could be due to less steric hindrance around the gold center. Reduction potentials and anticancer activity are not in correlation.",
publisher = "Electrochemical Science Group, Beograd",
journal = "International Journal of Electrochemical Science",
title = "Electrochemical properties of some gold(III) complexes with (S,S)-R(2)edda-type ligands",
pages = "1171-1162",
number = "2",
volume = "11",
url = "https://hdl.handle.net/21.15107/rcub_cherry_2060"
}

Pantelić, N., Stanković, D., Zmejkovski, B. B., Kaludjerović, G. N.,& Sabo, T. J.. (2016). Electrochemical properties of some gold(III) complexes with (S,S)-R(2)edda-type ligands. in International Journal of Electrochemical Science
Electrochemical Science Group, Beograd., 11(2), 1162-1171.
https://hdl.handle.net/21.15107/rcub_cherry_2060

Pantelić N, Stanković D, Zmejkovski BB, Kaludjerović GN, Sabo TJ. Electrochemical properties of some gold(III) complexes with (S,S)-R(2)edda-type ligands. in International Journal of Electrochemical Science. 2016;11(2):1162-1171.
https://hdl.handle.net/21.15107/rcub_cherry_2060 .

Pantelić, Nebojša, Stanković, Dalibor, Zmejkovski, Bojana B., Kaludjerović, Goran N., Sabo, Tibor J., "Electrochemical properties of some gold(III) complexes with (S,S)-R(2)edda-type ligands" in International Journal of Electrochemical Science, 11, no. 2 (2016):1162-1171,
https://hdl.handle.net/21.15107/rcub_cherry_2060 .

TY  - JOUR
AU  - Stanišić, Svetlana M.
AU  - Ignjatović, Ljubiša M.
AU  - Stević, Milica C.
AU  - Djordjević, Aleksandar
PY  - 2011
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2639
AB  - Three different extraction techniques were used for aqueous extraction of anions from soil of the type Ranker that was sampled from a serpentine site. The first technique involved the use of a rotary mixer (rotary mixer assist- ed extraction), the second, a microwave digestion system (microwave assisted extraction), with different extraction temperatures for every cycle during the procedure as follows: 50, 100 and 150°C. An ultrasonic bath (ultrasonic assisted extraction) was used for the last technique in which the durations of the extraction process were: 10, 20, 30, 40 and 50 min. The concentrations of inorganic anions in the soil extracts after filtration were determined by ion chromatography. The results showed that the microwave-assisted extraction was highly efficient, giving, at a temperature of 150°C, several times higher amounts of extracted anions in water than the other two techniques. Moreover, the extracted amounts of anions obtained by means of an ultrasonic bath with an extraction time ranging from 10 to 50 min were similar to those obtained by means of the rotary mixer with an extraction time of 22 h. However, extraction using the rotary mixer was more reliable, since the extracted amounts of anions obtained by means of an ultrasonic bath do not correlate with prolongation of the extraction time.
AB  - Vršena je ekstrakcija anjona u dejonizovanoj vodi, iz uzorka zemljišta tipa serpentinita, upotrebom tri različite tehnike ekstrakcije: upotrebom rotacione mućkalice u trajanju od 22 sata, mikrotalasne pećnice, uz promenu temperature za svaki od ciklusa ekstrakcije: 50, 100 i 150°C i ultrazvučne kade, sa ekstrakcionim vremenom od 10, 20, 30, 40 i 50 min. U ekstraktu zemljišta dobijenom nakon filtracije su određivane koncentracije neorganskih anjona metodom jonske hromatografije. Izvršena su poređenja rezultata za svaku od tehnika ekstrakcije, čime je zaključeno da se ekstrakcija potpomognuta mikrotalasima pokazala kao veoma efikasna, dajući na temperaturi od 150°C nekoliko puta veću količinu ekstrahovanih anjona u poređenju sa druge dve tehnike ekstrakcije. Količina ekstrahovanih anjona upotrebom ultrazvučne kade, sa ekstrakcionim vremenom u rasponu od 10 do 50 min, je bila približna količini dobijenoj ekstrakcijom koja koristi rotacionu mućkalicu, u trajanju od 22 h. Ipak, ekstrakciona tehnika koja koristi rotacionu mućkalicu se pokazala kao pouzdanija od tehnike ekstrakcije potpomognute ultrazvukom, jer količina ekstrahovanih anjona pri ekstrakciji uz pomoć ultrazvuka nije u korelaciji sa produženjem ekstrakcionog vremena.
PB  - Srpsko hemijsko društvo, Beograd
T2  - JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
T1  - A comparison of sample extraction procedures for the determination of inorganic anions in soil by ion chromatography
T1  - Uticaj pripreme uzorka zemljišta na određivanje neorganskih anjona metodom jonske hromatografije
EP  - 780
IS  - 5
SP  - 769
VL  - 76
DO  - 10.2298/JSC100911069S
ER  - 

@article{
author = "Stanišić, Svetlana M. and Ignjatović, Ljubiša M. and Stević, Milica C. and Djordjević, Aleksandar",
year = "2011",
abstract = "Three different extraction techniques were used for aqueous extraction of anions from soil of the type Ranker that was sampled from a serpentine site. The first technique involved the use of a rotary mixer (rotary mixer assist- ed extraction), the second, a microwave digestion system (microwave assisted extraction), with different extraction temperatures for every cycle during the procedure as follows: 50, 100 and 150°C. An ultrasonic bath (ultrasonic assisted extraction) was used for the last technique in which the durations of the extraction process were: 10, 20, 30, 40 and 50 min. The concentrations of inorganic anions in the soil extracts after filtration were determined by ion chromatography. The results showed that the microwave-assisted extraction was highly efficient, giving, at a temperature of 150°C, several times higher amounts of extracted anions in water than the other two techniques. Moreover, the extracted amounts of anions obtained by means of an ultrasonic bath with an extraction time ranging from 10 to 50 min were similar to those obtained by means of the rotary mixer with an extraction time of 22 h. However, extraction using the rotary mixer was more reliable, since the extracted amounts of anions obtained by means of an ultrasonic bath do not correlate with prolongation of the extraction time., Vršena je ekstrakcija anjona u dejonizovanoj vodi, iz uzorka zemljišta tipa serpentinita, upotrebom tri različite tehnike ekstrakcije: upotrebom rotacione mućkalice u trajanju od 22 sata, mikrotalasne pećnice, uz promenu temperature za svaki od ciklusa ekstrakcije: 50, 100 i 150°C i ultrazvučne kade, sa ekstrakcionim vremenom od 10, 20, 30, 40 i 50 min. U ekstraktu zemljišta dobijenom nakon filtracije su određivane koncentracije neorganskih anjona metodom jonske hromatografije. Izvršena su poređenja rezultata za svaku od tehnika ekstrakcije, čime je zaključeno da se ekstrakcija potpomognuta mikrotalasima pokazala kao veoma efikasna, dajući na temperaturi od 150°C nekoliko puta veću količinu ekstrahovanih anjona u poređenju sa druge dve tehnike ekstrakcije. Količina ekstrahovanih anjona upotrebom ultrazvučne kade, sa ekstrakcionim vremenom u rasponu od 10 do 50 min, je bila približna količini dobijenoj ekstrakcijom koja koristi rotacionu mućkalicu, u trajanju od 22 h. Ipak, ekstrakciona tehnika koja koristi rotacionu mućkalicu se pokazala kao pouzdanija od tehnike ekstrakcije potpomognute ultrazvukom, jer količina ekstrahovanih anjona pri ekstrakciji uz pomoć ultrazvuka nije u korelaciji sa produženjem ekstrakcionog vremena.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "JOURNAL OF THE SERBIAN CHEMICAL SOCIETY",
title = "A comparison of sample extraction procedures for the determination of inorganic anions in soil by ion chromatography, Uticaj pripreme uzorka zemljišta na određivanje neorganskih anjona metodom jonske hromatografije",
pages = "780-769",
number = "5",
volume = "76",
doi = "10.2298/JSC100911069S"
}

Stanišić, S. M., Ignjatović, L. M., Stević, M. C.,& Djordjević, A.. (2011). A comparison of sample extraction procedures for the determination of inorganic anions in soil by ion chromatography. in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
Srpsko hemijsko društvo, Beograd., 76(5), 769-780.
https://doi.org/10.2298/JSC100911069S

Stanišić SM, Ignjatović LM, Stević MC, Djordjević A. A comparison of sample extraction procedures for the determination of inorganic anions in soil by ion chromatography. in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY. 2011;76(5):769-780.
doi:10.2298/JSC100911069S .

Stanišić, Svetlana M., Ignjatović, Ljubiša M., Stević, Milica C., Djordjević, Aleksandar, "A comparison of sample extraction procedures for the determination of inorganic anions in soil by ion chromatography" in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY, 76, no. 5 (2011):769-780,
https://doi.org/10.2298/JSC100911069S . .