Piccini, Leonardo. “Evolution of Karst Caves in the Alpi Apuane (Italy): Relationships With the Morphotectonic History”. Geografia Fisica e Dinamica Quaternaria 3, no. 4 (January 1, 1998): 21–31. Accessed May 25, 2026. https://www.gfdq.glaciologia.it/index.php/GFDQ/article/view/1191.