D’Addezio, G., D. B. Karner, P. Burrato, D. Insinga, L. Maschio, L. Ferranti, and P. R. Renne. “Tephrochronology in Faulted Middle Pleistocene Tephra Layer in the Val d’Agri Area (Southern Italy)”. Annals of Geophysics 49, no. 4-5 (December 25, 2006). Accessed October 28, 2021. https://www.annalsofgeophysics.eu/index.php/annals/article/view/3115.