Vujević, M., and K. Posavec. “Identification of Groundwater Level Decline in Zagreb and Samobor-Zaprešić Aquifers since the Sixties of the Twentieth Century”. Rudarsko-geološko-Naftni Zbornik, Vol. 33, no. 4, June 2018, https://hrcak.srce.hr/ojs/index.php/rgn/article/view/6776.