1. American Society of Heating, Refrigerating, and Air-Conditioning Engineers, , ASHRAE Handbook—1985 Fundamentals, chap. 22 Atlanta, Ga., 1985,
2. Mechanism of radon release in rock matrices and entry into groundwaters;Andrews;Trans. Inst. Min. Metall., Sect. B,1972
3. Pedologic and climatic controls on Rn-222 concentrations in soil gas, Denver, Colorado;Asher-Bolinder;Geophys. Res. Lett.,1990
4. Radon emanation from domestic uranium ores determined by modifications of the closed-can gamma-only assay method;Austin,1977
5. Emanation characteristics of terrestrial and lunar materials and the radon-222 loss effect on the uraniumlead system discordance;Barretto,1973