Gafà, R.M., Martarelli, L., Pieruccioni, D. and Roma, M. 2021. [Geological and hydrogeological markers for prevention and reduction of radon exposition risk]. Acque Sotterranee - Italian Journal of Groundwater. 10, 4 (Dec. 2021), 77–79. DOI:https://doi.org/10.7343/as-2021-539.