Brezigar, Aleksander, Gorazd Kosi, and Danijel Vrhovšek. “Paleontological Investigations of the Plio-Quaternary Beds of the Velenje Depression”. Geologija 28, no. 1 (December 31, 1985): 93–119. Accessed May 2, 2024. https://www.geologija-revija.si/index.php/geologija/article/view/560.