Cerdà-Domènech, Marc Constraining the temporal variations of Ra isotopes and Rn in the groundwater end-member: Implications for derived SGD estimates. [electronic resource] - The Science of the total environment Oct 2017 - 849-857 p. digital Publication Type: Journal Article ISSN: 1879-1026 Standard No.: 10.1016/j.scitotenv.2017.03.005 doi