Pistorio, Antonio, Filippo Greco, Gilda Currenti, Rosalba Napoli, Antonino Sicali, Ciro Del Negro, and Luigi Fortuna. “High-Precision Gravity Measurements Using Absolute and Relative Gravimeters at Mount Etna (Sicily, Italy)”. Annals of Geophysics 54, no. 5 (December 16, 2011). Accessed April 26, 2024. https://www.annalsofgeophysics.eu/index.php/annals/article/view/5348.