Omirou Michalakis, Leontaris Fokion, Xarchoulakos Dimitrios. C., Kehagia Konstantina, Clouvas Alexandros, and Potiriadis Constantinos. “Time Variation of Radon in Tap Water in Locations of a Greek Area With Geological Background for Elevated Radon-in-Water Concentrations and Correlation Study Between Radon, Gross Alpha, Uranium, and Radium Concentrations”. Journal of the European Radon Association 3 (November 14, 2022). Accessed February 7, 2023.