Vingiani, Simona, and Fabio Terribile. “Soils of the Detachment Crowns of Ischia Landslides (Italy)”. Italian journal of engineering geology and environment, no. 2 (December 30, 2007): 51–63. Accessed April 27, 2024. https://rosa.uniroma1.it/rosa02/engineering_geology_environment/article/view/851.