@ARTICLE{
author={Paunovic Momir M,Kalafatic Vladimir I,Jakovcev Dunja G,Martinovic-Vitanovic Vesna M},
year={2003},
title={Oligochaetes (Annelida, Oligochaeta) of the Vlasina river (South-East Serbia): diversity and distribution},
journal={BIOLOGIA},
volume={58},
number={5},
pages={903-911},
document_type={Article},
} 

@ARTICLE{
author={Cakic Predrag D,Petrovic Z,Kataranovski Dragan S,Jakovcev Dunja G,Lenhardt Mirjana B},
year={2000},
title={The first record and description of Chaetogaster limnaei von Baer, 1827 (Naididae, Oligochaeta) on Huso huso fry in Serbia},
journal={HELMINTHOLOGIA},
volume={37},
number={3},
pages={162-164},
document_type={Article},
}