@ARTICLE{
author={Markovic Slobodan B,Kostic Nikola S,Oches Eric A},
year={2004},
title={Paleosols in the Ruma loess section (Vojvodina, Serbia)},
journal={REVISTA MEXICANA DE CIENCIAS GEOLOGICAS},
volume={21},
number={1},
pages={79-87},
document_type={Article},
} 

@ARTICLE{
author={Kostic Nikola S,Protic Nebojsa J},
year={2000},
title={Pedology and mineralogy of loess profiles at Kapela-Batajnica and Stalac, Serbia},
journal={CATENA},
volume={41},
number={1-3},
pages={217-227},
document_type={Article},
}