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author={Zirojevic Jelena,Jovic Z,Djurdjevic Aleksandra,Ciric Andrija R,Djurdjevic Predrag T},
year={2015},
title={Chemometric-Assisted Determination of some Bisphosphonates and Their Related Substances in Pharmaceutical Forms by Ion Chromatography with Inverse UV Detection},
journal={ACTA CHROMATOGRAPHICA},
volume={27},
number={2},
pages={215-237},
document_type={Article},
} 

@ARTICLE{
author={Letica Jelena D,Markovic Slavko,Zirojevic Jelena,Nikolic Katarina M,Agbaba Danica D},
year={2010},
title={High-Performance Liquid Chromatographic Determination of Pantoprazole and Its Main Impurities in Pharmaceuticals},
journal={JOURNAL OF AOAC INTERNATIONAL},
volume={93},
number={4},
pages={1121-1128},
document_type={Article},
}