Breiter, Karel. “800 Years of Mining Activity and 450 Years of Geological Research in the Krušné Hory Erzgebirge Mountains, Central Europe”. Boletim do Museu Paraense Emílio Goeldi - Ciências Naturais 9, no. 1 (April 30, 2014): 105–134. Accessed October 5, 2025. https://boletimcn.museu-goeldi.br/bcnaturais/article/view/540.