Ramovš, Anton, and Vanda Kochansky-Devidé. “Carboniferous and Permian Beds at Log in the Julian Alps”. Geologija 24, no. 1 (December 31, 1981): 91–107. Accessed April 19, 2024. https://www.geologija-revija.si/index.php/geologija/article/view/486.