Firpo, Marco, and Matteo Spagnolo. “Morphometric Analysis of Sansobbia River Basin (Liguria, Italy) and Tectonic Implications”. Geografia Fisica e Dinamica Quaternaria 24, no. 1 (June 30, 2001): 57–63. Accessed March 13, 2025. https://www.gfdq.glaciologia.it/index.php/GFDQ/article/view/443.