Del Negro, Ciro. «Technological Innovation and Automation in the Integrated Applications of Electromagnetic and Potential Field Methods in Active Volcanic Areas. Epot - Ciro Del Negro Editor». Quaderni di Geofisica 35 (gennaio 1, 2004). Consultato ottobre 21, 2026. https://collane-editoriali.ingv.it/index.php/qdg/article/view/827.