Vujević, Mate, and Kristijan Posavec. 2018. “Identification of Groundwater Level Decline in Zagreb and Samobor-Zaprešić Aquifers since the Sixties of the Twentieth Century”. Rudarsko-geološko-Naftni Zbornik 33 (4). https://hrcak.srce.hr/ojs/index.php/rgn/article/view/6776.