Hinterlechner, Ana. “Ladinian Igneous Rocks and the Hydrothermal Alterations of the Black Slate in the Neighbourhood of Črna Near Kamnik Town”. Geologija 5, no. 1 (December 31, 1959): 129–152. Accessed May 2, 2024. https://www.geologija-revija.si/index.php/geologija/article/view/198.