Bollati, Irene, Manuela Pelfini, and Luisa Pellegrini. “A Geomorphosites Selection Method for Educational Purposes: A Case Study in Trebbia Valley (Emilia Romagna, Italy)”. Geografia Fisica e Dinamica Quaternaria 35, no. 1 (June 30, 2012): 23–35. Accessed December 21, 2024. https://www.gfdq.glaciologia.it/index.php/GFDQ/article/view/204.