G. Crosta, “Landslide, spreading, deep seated gravitational deformation: analysis, examples, problems and proposals”, Geog. Fis. Dinam. Quat., vol. 19, no. 2, pp. 297–313, Dec. 1996, Accessed: Apr. 03, 2025. [Online]. Available: https://www.gfdq.glaciologia.it/index.php/GFDQ/article/view/594