Caloi, P., A. Lo Surdo, and G. Ponte. “Agitazioni Macrosismiche Originate Da Attività Vulcanica”. Annals of Geophysics 1, no. 1 (November 25, 1948): 5–9. Accessed April 26, 2024. https://www.annalsofgeophysics.eu/index.php/annals/article/view/5991.