Chelli, Alessandro, Paolo Roberto Federici, and Marta Pappalardo. “Geomorphological and Archaeological Evidence of Roman Times Shoreline in the La Spezia Gulf”. Geografia Fisica e Dinamica Quaternaria 7 (December 1, 2005): 97–103. Accessed May 25, 2026. https://www.gfdq.glaciologia.it/index.php/GFDQ/article/view/1274.