Knez, Martin, Tadej Slabe, and Stanka Šebela. 2016. “Karstification of the Aquifer Discovered During the Construction of the Expressway Between Klanec and Črni Kal, Classical Karst”. Acta Carsologica 33 (1). Ljubljana, Slovenija. https://doi.org/10.3986/ac.v33i1.324.