Nisi, B., Vaselli, O., Tassi, F., de Elio, J., Ortega, M., Caballero, J., Rappuoli, D. and Mazadiego, L. F. (2014) “Origin of the gases released from the Acqua Passante and Ermeta wells (Mt. Amiata, central Italy) and possible environmental implications for their closure”, Annals of Geophysics, 57(4), p. S0438. doi: 10.4401/ag-6584.