1. Ion microprobe mass analyzer;Andersen;Science,1972
2. A.M. Reid, NASA, MSC Houston, personal communication.
3. Solid state studies of the radiation history of lunar samples;Crozaz;Science,1970
4. Uranium-thorium-lead isotopes in some Tranquillity Base samples and their implications for lunar history;Silver,1970
5. Age of the moon: An isotopic study of U-Th-Pb systematics of Apollo 11 Lunar samples-II;Tatsumoto,1970