Cigale, Dejan, and Darko Ogrin. “Alexander Georg Supan – V Sloveniji Spregledan Geograf Slovenskega Rodu”. Dela, no. 45 (December 29, 2016): 135–163. Accessed June 16, 2025. https://journals.uni-lj.si/Dela/article/view/dela.45.8.135-163.