Batini, F., M. Caputo, and R. Console. “Focal Mechanism of Seismic Events With a Dipolar Component”. Annals of Geophysics 38, no. 3-4 (November 25, 1995). Accessed September 26, 2022. https://www.annalsofgeophysics.eu/index.php/annals/article/view/4112.