1. Climate and natural radon levels in Castleguard cave, Columbia Icefields, Alberta, Canada;Atkinson;Artic and Alpine Research,1983
2. Radon in the environment-opportunities and hazards;Fleischer;Nucl. Tracks and Radiat. Meas.,1988
3. Cave radioactivity — theory and data;Gádoros,1985
4. Subsurface radon distribution measurements with LR-115, CR-39 and TL-detectors;Somogyi,1982
5. Radon measurement in the Hajnóczy cave;Somogyi;Izotóptechnika,1983