Zollo, A., Gasparini, P., Biella, G., de Franco, R., Buonocore, B., Mirabile, L., De Natale, G., Milano, G., Pingue, F. and Vilardo, G. (1996) “ Description of the experiment and preliminary results”., Annals of Geophysics, 39(3). doi: 10.4401/ag-3983.