Pleničar, M. “The Stratigraphic Development of Cretaceous Beds in Southern Primorska (Slovene Littoral) and Notranjska (inner Carniola)”. Geologija, vol. 6, no. 1, Dec. 1960, pp. 22-145, https://www.geologija-revija.si/index.php/geologija/article/view/1744.