Hinzen, Klaus-G., and Arnaud Montabert. “Rectangular Blocks Vs Polygonal Walls in Archaeoseismology”. Annals of Geophysics 60, no. 4 (July 13, 2017): S0443. Accessed November 30, 2021. https://www.annalsofgeophysics.eu/index.php/annals/article/view/7127.