Troise, C., G. De Natale, and F. Pingue. “Non-Linear Effects in Ground Deformation at Calderas Due to the Presence of Structural Discontinuities”. Annals of Geophysics 47, no. 4 (December 25, 2004): 1513–1520. Accessed May 5, 2024. https://www.annalsofgeophysics.eu/index.php/annals/article/view/4400.