Chelli, Alessandro, and Claudio Tellini. “Scree Slope Deposits During Cold-Damp Climatic Phase in the Early Middle Ages in the Gulf of La Spezia (Liguria, Italy)”. Geografia Fisica E Dinamica Quaternaria, vol. 24, no. 1, June 2001, pp. 25-28, https://www.gfdq.glaciologia.it/index.php/GFDQ/article/view/439.