Corbi, Ileana, Pantaleone De Vita, Domenico Guida, Mattia Guida, Roberto Lanzara, and Antonio Vallario. 1999. “Mid-Term Geomorphological Evolution of the Covatta Valley, Biferno River Basin, Molise, Italy”. Geografia Fisica E Dinamica Quaternaria 22 (2): 115-28. https://www.gfdq.glaciologia.it/index.php/GFDQ/article/view/468.