Fiordelisi, A., R. Mackie, A. Manzella, D. Watts, and A. Zaja. “Electrical Features of Deep Structures of Southern Tuscany (Italy)”. Annals of Geophysics 41, no. 3 (November 25, 1998). Accessed October 17, 2021. https://www.annalsofgeophysics.eu/index.php/annals/article/view/4351.