Di Giovambattista, R., and Y. Tyupki. “The Fine Structure of the Dynamics of Seismicity before Earthquakes in the Area of Reggio Emilia (Northern Italy)”. Annals of Geophysics 42, no. 5 (November 25, 1999). Accessed April 24, 2024. https://www.annalsofgeophysics.eu/index.php/annals/article/view/3768.