Stark, Manuel, Fabian Neugirg, Andreas Kaiser, Jürgen Schmidt, Michael Becht, and Florian Haas. “MULTITEMPORAL AERIAL IMAGE ANALYSIS OF A CALANCHI BADLAND IN CENTRAL ITALY (UPPER ORCIA VALLEY, TUSCANY). A QUANTITATIVE ASSESSMENT OF EROSION RATES AND DYNAMICS”. Geomorphology for Society (September 11, 2015). Accessed March 6, 2021. https://ojs.unica.it/index.php/GfS/article/view/1925.