Angelelli, F., . M. L. Pampaloni, R. M. Pichezzi, and G. Ventura. “ALBERTO MALATESTA: 20 YEARS OF ACTIVITY AT THE GEOLOGICAL SURVEY OF ITALY”. Alpine and Mediterranean Quaternary, vol. 24, no. 1, Jan. 2011, pp. 11-39, https://amq.aiqua.it/index.php/amq/article/view/238.