TY  - JOUR
AU  - Vukojević, Vesna
AU  - Trifković, Jelena
AU  - Krgović, Rada
AU  - Milojković-Opsenica, Dušanka
AU  - Marković, Marijana
AU  - Amaizah, Naser Ramdan R.
AU  - Mutić, Jelena
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2365
AB  - Fourteen metals and metalloids were determined in Conyza canadensis L. harvested from the fly ash landfill of the thermoelectric power plant "Kolubara" (Serbia). Fly ash samples were collected together with the plant samples and subjected to sequential extraction according to the three-step sequential extraction scheme proposed by the Community Bureau of Reference (BCR; now the Standards, Measurements and Testing Program). The contents of metals and metalloids were determined by inductively coupled plasma optical emission spectrometry (ICP-OES) in plant root and the aboveground part and correlated with their contents in the fly ash samples. The bioconcentration factor (BCF) and translocation factors (TF) were calculated to access uptake of metals from fly ash and their translocation to the aboveground part. Results regarding As revealed that fly ash samples in the proximity of the active cassette had higher amounts of the element. Principal component analysis (PCA) showed that As had no impact on the classification of plant parts. BCF for As ranged from 1.44 to 23.8 and varied, depending on the investigated area; TF for As ranged from 0.43 to 2.61, indicating that the plant translocated As from root to shoot. In addition to As, Conyza canadensis L. exhibited efficient uptake of other metals from fly ash. According to the calculated BCF and TF, the plant retained Al, Fe and Cr in the root and translocated Zn, Cd, Cu and As from root to shoot in the course of the detoxifying process.
PB  - Inst Bioloska Istrazivanja Sinisa Stankovic, Beograd
T2  - Archives of biological sciences
T1  - Uptake of Metals and Metalloids by Conyza Canadensis L. from  a Thermoelectric Power Plant Landfill
VL  - 68
IS  - 4
SP  - 829
EP  - 835
DO  - 10.2298/ABS151011071V
ER  - 

@article{
author = "Vukojević, Vesna and Trifković, Jelena and Krgović, Rada and Milojković-Opsenica, Dušanka and Marković, Marijana and Amaizah, Naser Ramdan R. and Mutić, Jelena",
year = "2016",
abstract = "Fourteen metals and metalloids were determined in Conyza canadensis L. harvested from the fly ash landfill of the thermoelectric power plant "Kolubara" (Serbia). Fly ash samples were collected together with the plant samples and subjected to sequential extraction according to the three-step sequential extraction scheme proposed by the Community Bureau of Reference (BCR; now the Standards, Measurements and Testing Program). The contents of metals and metalloids were determined by inductively coupled plasma optical emission spectrometry (ICP-OES) in plant root and the aboveground part and correlated with their contents in the fly ash samples. The bioconcentration factor (BCF) and translocation factors (TF) were calculated to access uptake of metals from fly ash and their translocation to the aboveground part. Results regarding As revealed that fly ash samples in the proximity of the active cassette had higher amounts of the element. Principal component analysis (PCA) showed that As had no impact on the classification of plant parts. BCF for As ranged from 1.44 to 23.8 and varied, depending on the investigated area; TF for As ranged from 0.43 to 2.61, indicating that the plant translocated As from root to shoot. In addition to As, Conyza canadensis L. exhibited efficient uptake of other metals from fly ash. According to the calculated BCF and TF, the plant retained Al, Fe and Cr in the root and translocated Zn, Cd, Cu and As from root to shoot in the course of the detoxifying process.",
publisher = "Inst Bioloska Istrazivanja Sinisa Stankovic, Beograd",
journal = "Archives of biological sciences",
title = "Uptake of Metals and Metalloids by Conyza Canadensis L. from  a Thermoelectric Power Plant Landfill",
volume = "68",
number = "4",
pages = "829-835",
doi = "10.2298/ABS151011071V"
}

Vukojević, V., Trifković, J., Krgović, R., Milojković-Opsenica, D., Marković, M., Amaizah, N. R. R.,& Mutić, J.. (2016). Uptake of Metals and Metalloids by Conyza Canadensis L. from  a Thermoelectric Power Plant Landfill. in Archives of biological sciences
Inst Bioloska Istrazivanja Sinisa Stankovic, Beograd., 68(4), 829-835.
https://doi.org/10.2298/ABS151011071V

Vukojević V, Trifković J, Krgović R, Milojković-Opsenica D, Marković M, Amaizah NRR, Mutić J. Uptake of Metals and Metalloids by Conyza Canadensis L. from  a Thermoelectric Power Plant Landfill. in Archives of biological sciences. 2016;68(4):829-835.
doi:10.2298/ABS151011071V .

Vukojević, Vesna, Trifković, Jelena, Krgović, Rada, Milojković-Opsenica, Dušanka, Marković, Marijana, Amaizah, Naser Ramdan R., Mutić, Jelena, "Uptake of Metals and Metalloids by Conyza Canadensis L. from  a Thermoelectric Power Plant Landfill" in Archives of biological sciences, 68, no. 4 (2016):829-835,
https://doi.org/10.2298/ABS151011071V . .

TY  - JOUR
AU  - Krgović, Rada
AU  - Trifković, Jelena
AU  - Milojković-Opsenica, Dušanka
AU  - Manojlović, Dragan D.
AU  - Marković, Marijana
AU  - Mutić, Jelena
PY  - 2015
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1728
AB  - The objectives of this study were to determine the concentrations of Pb, Cd, As, Cr, Cu, Co, Ni, Zn, Ba, Fe, Al and Ag in Erigeron canadensis L. growing on fly ash landfill of power plant "Kolubara", Serbia. The content of each element was determined in every part of plant separately (root, stalk and inflorescence) and correlated with the content of elements in each phase of sequential extraction of fly ash. In order to ambiguously select the factors that are able to decidedly characterize the particular part of plant, principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA) were performed. The bioconcentration factors and translocation factors for each metal were calculated in order to determine the feasibility of the use of plant E. canadensis L. for phytoremediation purpose. There were strong positive correlations between metals in every part of plant samples, and metals from pseudo total form of sequential extraction indicate that the bioavailability of elements in fly ash is similarly correlated with total form. Retained Al, Fe, Cr and Co in the root indicate its suitability for phytostabilization. This plant takes up Cd and Zn from the soil (bioconcentration factors (BCFs) greater than 1), transporting them through the stalk into the inflorescence (translocation factors (TFs) higher than 1). Regarding its dominance in vegetation cover and abundance, E. canadensis L. can be considered adequate for phytoextraction of Cd and Zn from coal ash landfills at Kolubara.
PB  - Springer Heidelberg, Heidelberg
T2  - Environmental Science and Pollution Research
T1  - Phytoextraction of metals by Erigeron canadensis L. from fly ash landfill of power plant "Kolubara"
VL  - 22
IS  - 14
SP  - 10506
EP  - 10515
DO  - 10.1007/s11356-015-4192-5
ER  - 

@article{
author = "Krgović, Rada and Trifković, Jelena and Milojković-Opsenica, Dušanka and Manojlović, Dragan D. and Marković, Marijana and Mutić, Jelena",
year = "2015",
abstract = "The objectives of this study were to determine the concentrations of Pb, Cd, As, Cr, Cu, Co, Ni, Zn, Ba, Fe, Al and Ag in Erigeron canadensis L. growing on fly ash landfill of power plant "Kolubara", Serbia. The content of each element was determined in every part of plant separately (root, stalk and inflorescence) and correlated with the content of elements in each phase of sequential extraction of fly ash. In order to ambiguously select the factors that are able to decidedly characterize the particular part of plant, principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA) were performed. The bioconcentration factors and translocation factors for each metal were calculated in order to determine the feasibility of the use of plant E. canadensis L. for phytoremediation purpose. There were strong positive correlations between metals in every part of plant samples, and metals from pseudo total form of sequential extraction indicate that the bioavailability of elements in fly ash is similarly correlated with total form. Retained Al, Fe, Cr and Co in the root indicate its suitability for phytostabilization. This plant takes up Cd and Zn from the soil (bioconcentration factors (BCFs) greater than 1), transporting them through the stalk into the inflorescence (translocation factors (TFs) higher than 1). Regarding its dominance in vegetation cover and abundance, E. canadensis L. can be considered adequate for phytoextraction of Cd and Zn from coal ash landfills at Kolubara.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Environmental Science and Pollution Research",
title = "Phytoextraction of metals by Erigeron canadensis L. from fly ash landfill of power plant "Kolubara"",
volume = "22",
number = "14",
pages = "10506-10515",
doi = "10.1007/s11356-015-4192-5"
}

Krgović, R., Trifković, J., Milojković-Opsenica, D., Manojlović, D. D., Marković, M.,& Mutić, J.. (2015). Phytoextraction of metals by Erigeron canadensis L. from fly ash landfill of power plant "Kolubara". in Environmental Science and Pollution Research
Springer Heidelberg, Heidelberg., 22(14), 10506-10515.
https://doi.org/10.1007/s11356-015-4192-5

Krgović R, Trifković J, Milojković-Opsenica D, Manojlović DD, Marković M, Mutić J. Phytoextraction of metals by Erigeron canadensis L. from fly ash landfill of power plant "Kolubara". in Environmental Science and Pollution Research. 2015;22(14):10506-10515.
doi:10.1007/s11356-015-4192-5 .

Krgović, Rada, Trifković, Jelena, Milojković-Opsenica, Dušanka, Manojlović, Dragan D., Marković, Marijana, Mutić, Jelena, "Phytoextraction of metals by Erigeron canadensis L. from fly ash landfill of power plant "Kolubara"" in Environmental Science and Pollution Research, 22, no. 14 (2015):10506-10515,
https://doi.org/10.1007/s11356-015-4192-5 . .

TY  - DATA
AU  - Krgović, Rada
AU  - Trifković, Jelena
AU  - Milojković-Opsenica, Dušanka
AU  - Manojlović, Dragan D.
AU  - Marković, Marijana
AU  - Mutić, Jelena
PY  - 2015
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3405
PB  - Springer Heidelberg, Heidelberg
T2  - Environmental Science and Pollution Research
T1  - Supplementary data for article: Krgović, R.; Trifković, J.; Milojković-Opsenica, D.; Manojlović, D.; Marković, M.; Mutić, J. Phytoextraction of Metals by Erigeron Canadensis L. From Fly Ash Landfill of Power Plant “Kolubara.” Environmental Science and Pollution Research 2015, 22 (14), 10506–10515. https://doi.org/10.1007/s11356-015-4192-5
UR  - https://hdl.handle.net/21.15107/rcub_cherry_3405
ER  - 

@misc{
author = "Krgović, Rada and Trifković, Jelena and Milojković-Opsenica, Dušanka and Manojlović, Dragan D. and Marković, Marijana and Mutić, Jelena",
year = "2015",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Environmental Science and Pollution Research",
title = "Supplementary data for article: Krgović, R.; Trifković, J.; Milojković-Opsenica, D.; Manojlović, D.; Marković, M.; Mutić, J. Phytoextraction of Metals by Erigeron Canadensis L. From Fly Ash Landfill of Power Plant “Kolubara.” Environmental Science and Pollution Research 2015, 22 (14), 10506–10515. https://doi.org/10.1007/s11356-015-4192-5",
url = "https://hdl.handle.net/21.15107/rcub_cherry_3405"
}

Krgović, R., Trifković, J., Milojković-Opsenica, D., Manojlović, D. D., Marković, M.,& Mutić, J.. (2015). Supplementary data for article: Krgović, R.; Trifković, J.; Milojković-Opsenica, D.; Manojlović, D.; Marković, M.; Mutić, J. Phytoextraction of Metals by Erigeron Canadensis L. From Fly Ash Landfill of Power Plant “Kolubara.” Environmental Science and Pollution Research 2015, 22 (14), 10506–10515. https://doi.org/10.1007/s11356-015-4192-5. in Environmental Science and Pollution Research
Springer Heidelberg, Heidelberg..
https://hdl.handle.net/21.15107/rcub_cherry_3405

Krgović R, Trifković J, Milojković-Opsenica D, Manojlović DD, Marković M, Mutić J. Supplementary data for article: Krgović, R.; Trifković, J.; Milojković-Opsenica, D.; Manojlović, D.; Marković, M.; Mutić, J. Phytoextraction of Metals by Erigeron Canadensis L. From Fly Ash Landfill of Power Plant “Kolubara.” Environmental Science and Pollution Research 2015, 22 (14), 10506–10515. https://doi.org/10.1007/s11356-015-4192-5. in Environmental Science and Pollution Research. 2015;.
https://hdl.handle.net/21.15107/rcub_cherry_3405 .

Krgović, Rada, Trifković, Jelena, Milojković-Opsenica, Dušanka, Manojlović, Dragan D., Marković, Marijana, Mutić, Jelena, "Supplementary data for article: Krgović, R.; Trifković, J.; Milojković-Opsenica, D.; Manojlović, D.; Marković, M.; Mutić, J. Phytoextraction of Metals by Erigeron Canadensis L. From Fly Ash Landfill of Power Plant “Kolubara.” Environmental Science and Pollution Research 2015, 22 (14), 10506–10515. https://doi.org/10.1007/s11356-015-4192-5" in Environmental Science and Pollution Research (2015),
https://hdl.handle.net/21.15107/rcub_cherry_3405 .

TY  - JOUR
AU  - Krgović, Rada
AU  - Trifković, Jelena
AU  - Milojković-Opsenica, Dušanka
AU  - Manojlović, Dragan D.
AU  - Mutić, Jelena
PY  - 2014
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1864
AB  - In power plant, coal ash obtained by combustion is mixed with river water and transported to the dump. Sequential extraction was used in order to assess pollution caused by leaching of elements during ash transport through the pipeline and in the storage (cassettes). A total of 80 samples of filter ash as well as the ash from active (currently filled) and passive (previously filled) cassettes were studied. Samples were extracted with distilled water, ammonium acetate, ammonium oxalate/oxalic acid, acidic solution of hydrogen-peroxide, and a hydrochloric acid. Concentrations of the several elements (Al, As, Cd, Co, Cu, Cr, Fe, Ba, Ca, Mg, Ni, Pb, and Zn) in all extracts were determined by inductively coupled plasma atomic emission spectrometry. Pattern recognition method was carried out in order to provide better understanding of the nature of distribution of elements according to their origins. Results indicate possible leaching of As, Ca, Cd, Cu, Zn, and Pb. Among these elements As, Cd, and Pb are toxicologically the most important but they were not present in the first two phases with the exception of As. The leaching could be destructive and cause negative effects on plants, water pollution, and damage to some life forms.
PB  - Hindawi Publishing Corporation, New York
T2  - Scientific World Journal / TSWJ
T1  - Leaching of Major and Minor Elements during the Transport and Storage of Coal Ash Obtained in Power Plant
DO  - 10.1155/2014/212506
ER  - 

@article{
author = "Krgović, Rada and Trifković, Jelena and Milojković-Opsenica, Dušanka and Manojlović, Dragan D. and Mutić, Jelena",
year = "2014",
abstract = "In power plant, coal ash obtained by combustion is mixed with river water and transported to the dump. Sequential extraction was used in order to assess pollution caused by leaching of elements during ash transport through the pipeline and in the storage (cassettes). A total of 80 samples of filter ash as well as the ash from active (currently filled) and passive (previously filled) cassettes were studied. Samples were extracted with distilled water, ammonium acetate, ammonium oxalate/oxalic acid, acidic solution of hydrogen-peroxide, and a hydrochloric acid. Concentrations of the several elements (Al, As, Cd, Co, Cu, Cr, Fe, Ba, Ca, Mg, Ni, Pb, and Zn) in all extracts were determined by inductively coupled plasma atomic emission spectrometry. Pattern recognition method was carried out in order to provide better understanding of the nature of distribution of elements according to their origins. Results indicate possible leaching of As, Ca, Cd, Cu, Zn, and Pb. Among these elements As, Cd, and Pb are toxicologically the most important but they were not present in the first two phases with the exception of As. The leaching could be destructive and cause negative effects on plants, water pollution, and damage to some life forms.",
publisher = "Hindawi Publishing Corporation, New York",
journal = "Scientific World Journal / TSWJ",
title = "Leaching of Major and Minor Elements during the Transport and Storage of Coal Ash Obtained in Power Plant",
doi = "10.1155/2014/212506"
}

Krgović, R., Trifković, J., Milojković-Opsenica, D., Manojlović, D. D.,& Mutić, J.. (2014). Leaching of Major and Minor Elements during the Transport and Storage of Coal Ash Obtained in Power Plant. in Scientific World Journal / TSWJ
Hindawi Publishing Corporation, New York..
https://doi.org/10.1155/2014/212506

Krgović R, Trifković J, Milojković-Opsenica D, Manojlović DD, Mutić J. Leaching of Major and Minor Elements during the Transport and Storage of Coal Ash Obtained in Power Plant. in Scientific World Journal / TSWJ. 2014;.
doi:10.1155/2014/212506 .

Krgović, Rada, Trifković, Jelena, Milojković-Opsenica, Dušanka, Manojlović, Dragan D., Mutić, Jelena, "Leaching of Major and Minor Elements during the Transport and Storage of Coal Ash Obtained in Power Plant" in Scientific World Journal / TSWJ (2014),
https://doi.org/10.1155/2014/212506 . .

TY  - JOUR
AU  - Amaizah, Nasser Ramdan
AU  - Čakmak, Dragan
AU  - Saljnikov, Elmira
AU  - Roglić, Goran
AU  - Mrvic, Vesna
AU  - Krgović, Rada
AU  - Manojlović, Dragan D.
PY  - 2012
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1529
AB  - The changes in inorganic and organic phosphorus (P) fractions of soil resulting from long-term fertilization (40 years) were investigated. In order to improve understanding of the sink and sources of phosphorus, P-fractions were extracted from soil samples from depths of 0-30 and 30-60 cm with different amounts of monoammonium-phosphate (MAP) and then determined. The studied soil was of the Stagnosol type. Phosphate fertilizer was applied in 26, 39 and 52 kg P ha(-1) amounts during a period of 40 years. Samples were subjected to sequential extraction according to a modified Chang and Jackson method and the Community Bureau of Reference (BCR) sequential extraction procedure in order to extract different forms of phosphorus. The certified reference material CRM 684 (river sediment extractable phosphorus) was used to confirm the accuracy of the instrument and of both employed methods. Furthermore, the association of phosphorus with substrates was provided by comparison of the results of sequential methods of phosphorus species with the sequential extraction of metals (Fe, Al, Mn and Ca). The results of continuous fertilization during 40 years indicated increases of all forms phosphorus in the soil except of phosphorus bound to calcium and organic phosphorus. Application of higher amounts of P-fertilizer resulted in the dominance of the Al P fraction in the studied soil, which indicated that this fraction was the most responsible for the migration of phosphorus along the soil profile.
AB  - U ovom radu ispitivane su promene u frakcijama neorganskog i organskog fosfora (P) u zemljištu koje su izazvane 40 godišnjim đubrenjem amonijum-fosfatom (MAR). Đubrivo je dodavano u količinama od 26, 39 i 52 kg P po hektaru zemljišta. U cilju praćenja mobilnosti fosfora, ekstrahovane su fosforne frakcije sa dve različite dubine zemljišta: površinski sloj od 0-30 cm i dubina od 30-60 cm. Tip ispitivanog zemljišta je Stagnosol. Uzorci su u cilju ekstrahovanja različitih oblika fosfora podvrgnuti sekvencijalnoj ekstrakciji i to na dva načina: prema modifikovanoj Chang i Jackson metodi i BCR metodi. Sertifikovani referentni materijal CRM 684 (rečni sediment) je korišćen za praćenje tačnosti obe korišćene metode. Osim toga je proučeno vezivanje fosfora sa supstratima (Fe, Al, Mn i Ca) koji su ekstrahovani sekvencijalnom ekstrakcijom metala. Rezultati ukazuju da kontinualno 40 godišnje đubrenje dovodi do povećanja sadržaja svih oblika fosfora u zemljištu osim fosfora koji je vezan za kalcijum i organskog fosfora. Primenom veće količine fosfornog đubriva dolazi do dominacije frakcije fosfora vezanog za aluminijum u ispitivanom zemljištu što ukazuje da je ta frakcija najodgovornija za migraciju fosfora kroz zemljište.
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Fractionation of soil phosphorus in a long-term phosphate fertilization
T1  - Frakcionisanje fosfora u zemljištu nakon dugotrajne primene fosfornog đubriva
VL  - 77
IS  - 7
SP  - 971
EP  - 981
DO  - 10.2298/JSC110927208A
ER  - 

@article{
author = "Amaizah, Nasser Ramdan and Čakmak, Dragan and Saljnikov, Elmira and Roglić, Goran and Mrvic, Vesna and Krgović, Rada and Manojlović, Dragan D.",
year = "2012",
abstract = "The changes in inorganic and organic phosphorus (P) fractions of soil resulting from long-term fertilization (40 years) were investigated. In order to improve understanding of the sink and sources of phosphorus, P-fractions were extracted from soil samples from depths of 0-30 and 30-60 cm with different amounts of monoammonium-phosphate (MAP) and then determined. The studied soil was of the Stagnosol type. Phosphate fertilizer was applied in 26, 39 and 52 kg P ha(-1) amounts during a period of 40 years. Samples were subjected to sequential extraction according to a modified Chang and Jackson method and the Community Bureau of Reference (BCR) sequential extraction procedure in order to extract different forms of phosphorus. The certified reference material CRM 684 (river sediment extractable phosphorus) was used to confirm the accuracy of the instrument and of both employed methods. Furthermore, the association of phosphorus with substrates was provided by comparison of the results of sequential methods of phosphorus species with the sequential extraction of metals (Fe, Al, Mn and Ca). The results of continuous fertilization during 40 years indicated increases of all forms phosphorus in the soil except of phosphorus bound to calcium and organic phosphorus. Application of higher amounts of P-fertilizer resulted in the dominance of the Al P fraction in the studied soil, which indicated that this fraction was the most responsible for the migration of phosphorus along the soil profile., U ovom radu ispitivane su promene u frakcijama neorganskog i organskog fosfora (P) u zemljištu koje su izazvane 40 godišnjim đubrenjem amonijum-fosfatom (MAR). Đubrivo je dodavano u količinama od 26, 39 i 52 kg P po hektaru zemljišta. U cilju praćenja mobilnosti fosfora, ekstrahovane su fosforne frakcije sa dve različite dubine zemljišta: površinski sloj od 0-30 cm i dubina od 30-60 cm. Tip ispitivanog zemljišta je Stagnosol. Uzorci su u cilju ekstrahovanja različitih oblika fosfora podvrgnuti sekvencijalnoj ekstrakciji i to na dva načina: prema modifikovanoj Chang i Jackson metodi i BCR metodi. Sertifikovani referentni materijal CRM 684 (rečni sediment) je korišćen za praćenje tačnosti obe korišćene metode. Osim toga je proučeno vezivanje fosfora sa supstratima (Fe, Al, Mn i Ca) koji su ekstrahovani sekvencijalnom ekstrakcijom metala. Rezultati ukazuju da kontinualno 40 godišnje đubrenje dovodi do povećanja sadržaja svih oblika fosfora u zemljištu osim fosfora koji je vezan za kalcijum i organskog fosfora. Primenom veće količine fosfornog đubriva dolazi do dominacije frakcije fosfora vezanog za aluminijum u ispitivanom zemljištu što ukazuje da je ta frakcija najodgovornija za migraciju fosfora kroz zemljište.",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Fractionation of soil phosphorus in a long-term phosphate fertilization, Frakcionisanje fosfora u zemljištu nakon dugotrajne primene fosfornog đubriva",
volume = "77",
number = "7",
pages = "971-981",
doi = "10.2298/JSC110927208A"
}

Amaizah, N. R., Čakmak, D., Saljnikov, E., Roglić, G., Mrvic, V., Krgović, R.,& Manojlović, D. D.. (2012). Fractionation of soil phosphorus in a long-term phosphate fertilization. in Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade., 77(7), 971-981.
https://doi.org/10.2298/JSC110927208A

Amaizah NR, Čakmak D, Saljnikov E, Roglić G, Mrvic V, Krgović R, Manojlović DD. Fractionation of soil phosphorus in a long-term phosphate fertilization. in Journal of the Serbian Chemical Society. 2012;77(7):971-981.
doi:10.2298/JSC110927208A .

Amaizah, Nasser Ramdan, Čakmak, Dragan, Saljnikov, Elmira, Roglić, Goran, Mrvic, Vesna, Krgović, Rada, Manojlović, Dragan D., "Fractionation of soil phosphorus in a long-term phosphate fertilization" in Journal of the Serbian Chemical Society, 77, no. 7 (2012):971-981,
https://doi.org/10.2298/JSC110927208A . .