Ortolani, Mario, and Nereo Alfieri. “Sur l´évolution Morphologique De l´ancien Delta Du Pô”. ERDKUNDE 19, no. 4 (November 30, 1965): 325–331. Accessed December 3, 2024. https://journals-test.ulb.uni-bonn.de/index.php/erdkunde/article/view/1480.