Iwona Kłosok-Bazan. RADON IN UNDERGROUND DRINKING WATER SUPPLIES IN OPOLE AND UPPER SILESIA REGION. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Water Resources. Forest, Marine and Ocean Ecosystems, 2018, pp. 601-608. https://doi.org/10.5593/sgem2018/3.1/s12.078