1. The role of lead and excess oxygen in uraninite;Berman;Amer. Min.,1957
2. The present state of the Witwatersrand controversy;Davidson;Mining Mag.,1960
3. The interpretation of age measurements on the Witwatersrand uraninite;De Villiers,1958
4. The geology of South Africa;Du Toit,1954
5. Uranium-lead method of age determinations—I. The Lake Athabasca problem;Eckelmann;Bull. Geol. Soc. Amer.,1956