D. Reitano, A. Ursino, e H. Langer, «Technical characteristics of a very broadband seismographic station at Valguarnera (Sicily, Italy)», Rapp. Tec. INGV, vol. 4, p. 12 pp., mag. 2002, Consultato: 20 ottobre 2026. [Online]. Disponibile su: https://collane-editoriali.ingv.it/index.php/rt/article/view/1573