Palangio, Paolo, Fabrizio Masci, Manuele Di Persio, Cinzia Di Lorenzo, and Elisabetta Lampis. 2009. “A New Station for Monitoring Electromagnetic Fields in Duronia (Italy): Experimental Setup and First Results”. Annals of Geophysics 52 (5):441-52. https://doi.org/10.4401/ag-4601.