Tarabusi, Gabriele, and Graziano Ferrari. “Information Technology Tools for the Valorisation of seismology’s Historical Documentary Heritage”. Annals of Geophysics 52, no. 6 (December 25, 2009): 739–759. Accessed July 1, 2022. https://www.annalsofgeophysics.eu/index.php/annals/article/view/4629.