Antoci, C., G. Immè, S. La Delfa, S. Lo Nigro, D. Morelli, G. Patanè, and G. Alessandro. “Indoor and Soil Radon Measurements in the Hyblean Foreland (South-East Sicily)”. Annals of Geophysics, vol. 50, no. 4, Dec. 2007, doi:10.4401/ag-3065.