@ARTICLE{
author={Hajek Michal,...,Lazarevic Predrag M,...,(broj koautora 34)},
year={2021},
title={A European map of groundwater pH and calcium},
journal={EARTH SYSTEM SCIENCE DATA},
volume={13},
number={3},
pages={1089-1105},
document_type={Article; Data Paper},
} 

@ARTICLE{
author={Peterka Tomas,Pleskova Zuzana,Palpurina Salza,Kalnikova Veronika,Lazarevic Predrag M,Hajek Michal},
year={2016},
title={Meesia triquetra, a new relict moss for the Republic of Macedonia},
journal={HERZOGIA},
volume={29},
number={1},
pages={66-71},
document_type={Article},
}