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author={Zlatkovic Bojan K,Nikolic L,Randjelovic Vladimir N,Randjelovic Novica V,Stevanovic Vladimir B},
year={2011},
title={Comparative Analyses of the Vascular Flora of the Pcinja River Gorges in Serbia and Macedonia},
journal={ARCHIVES OF BIOLOGICAL SCIENCES},
volume={63},
number={4},
pages={1157-1166},
document_type={Article},
} 

@ARTICLE{
author={Tomasevic Zorica I,Jelic Svetislav B,Nikolic L,Filipovic I,Stamatovic Ljiljana,Radosavljevic Davorin Z},
year={2003},
title={Negative CEA values in metastatic colorectal carcinoma and the likelihood of complete chemotherapy response},
journal={INTERNATIONAL JOURNAL OF BIOLOGICAL MARKERS},
volume={18},
number={1},
pages={28-32},
document_type={Article},
}