Azzaro, R., and M. S. Barbano. “Analysis of the Seismicity of Southeastern Sicily: A Proposed Tectonic Interpretation”. Annals of Geophysics 43, no. 1 (December 25, 2000). Accessed October 19, 2021. https://www.annalsofgeophysics.eu/index.php/annals/article/view/3628.