pid type title authors mentors source_title published_date url doi isbn issn eissn rgn:1507 "journal article" "Nitrate contamination risk of the Zagreb aquifer" "Huljek, Laura; Perković, Dario; Kovač, Zoran" rgn:847 thesis "Karta specifične ranjivosti na glavne izvore dušikovih spojeva na području zagrebačkog vodonosnika" "Huljek, Laura" rgn:1508 appendix "Nitrate contamination risk of the Zagreb aquifer : supplemental material 1/2" "Huljek, Laura" rgn:1509 appendix "Nitrate contamination risk of the Zagreb aquifer : supplemental material 2/2" "Huljek, Laura"