Ramis, Ramon Ortiz, Alicia Garcia, José Manuel Marrero, Servando De la Cruz-Reyna, Roberto Carniel, and Josep Vila. “Volcanic and Volcano-Tectonic Activity Forecasting: A Review on Seismic Approaches”. Annals of Geophysics 62, no. 1 (July 8, 2019): VO06. Accessed April 11, 2026. https://www.annalsofgeophysics.eu/index.php/annals/article/view/7655.