1. Track Etch ratios to soil uranium and a new uranium abundance estimate;Alter,1978
2. Radon detection using track registration materials;Alter,1974
3. Mechanism of radon release in rock matrices and entry into groundwaters;Andrews;Trans. IMM, Sect. B,1972
4. Emanation Characteristics of Rocks, Soils and Rn-222 Loss Effect on the U-Pb System Discordance;Barretto,1973
5. Radon-222 emanation characteristics of rocks and minerals in radon in uranium mining;Barretto,1975