@ARTICLE{
author={Saponjic Aleksandra B,Gyoshev Stanislav,Bascarevic Zvezdana D,Jankovic-Mandic Ljiljana J,Ljubenov Gorica,Kokunesoski Maja J},
year={2022},
title={Characterization of Sedimentary Minerals from Kolubara Mining Basin, Serbia, with the Determination of Natural Radioactivity},
journal={SCIENCE OF SINTERING},
volume={54},
number={1},
pages={39-48},
document_type={Article},
} 

@ARTICLE{
author={Saponjic Aleksandra B,Saponjic Djordje P,Nikolic Violeta N,Milosevic Maja D,Marinovic-Cincovic Milena T,Gyoshev Stanislav,Vukovic Marina N,Kokunesoski Maja J},
year={2017},
title={Iron (III) Oxide Fabrication From Natural Clay With Reference to Phase Transformation gamma- -> alpha- Fe2O3},
journal={SCIENCE OF SINTERING},
volume={49},
number={2},
pages={197-205},
document_type={Article},
}