Dramis, Francesco, Bernardino Gentili, Mauro Coltorti, and Claudio Cherubini. “Osservazioni Geomorfologiche Sui Calanchi Marchigiani: Geomorphological Observations on Badlands in the Marche Region”. Geografia Fisica e Dinamica Quaternaria 5, no. 1 (June 30, 1982): 38–45. Accessed June 19, 2025. https://www.gfdq.glaciologia.it/index.php/GFDQ/article/view/964.