C. Brusca, G. Dessau, J. M. Leroy, and G. Perna, “The deposits of argentiferous galena within the Bellerophon formation (Upper Permian) of the southern Alps”, geologija, vol. 15, no. 1, pp. 159–179, Dec. 1972, Accessed: Oct. 26, 2026. Available: https://www.geologija-revija.si/index.php/geologija/article/view/1602