D. Aringoli, “Geomorphology and quaternary evolution of Central Italy”, Geog. Fis. Dinam. Quat., vol. 3, no. 2, pp. 79–103, Jan. 1997, Accessed: Apr. 17, 2026. [Online]. Available: https://www.gfdq.glaciologia.it/index.php/GFDQ/article/view/1150