1. Geochronology by radioactive decay;Aldrich;Ann. Rev. of Nuc. Sci.,1958
2. North American tektites;Barnes;Univ. Tex. Publ. No. 3945,1940
3. Moldavites and tektites from Georgia U.S.A;Cohen;Geochim. Cosmochim. Acta,1959
4. Geology of coastal plain of Georgia;Cooke;U.S.G. Survey Bull. 941,1943
5. Cosmic-ray-induced radioactivities in meteorites—II;Ehmann;Geochim. Cosmochim. Acta,1958