1. Une typologie originale du zircon accessoire;Pupin;Bull. Soc. Fr. Mineral. Cristallogr.,1972
2. Patterns of UPb zircon and monazite ages in polymetamorphic units of the Swiss Central Alps;Köppel;Schweiz. Mineral. Petrogr. Mitt.,1981
3. Discordant uranium-lead ages, I;Wetherill;Trans. Am. Geophys. Union,1956
4. Uranium-lead isotopic variations in zircons: a case study;Silver;J. Geol.,1963
5. The relation between radioactivity and discordance in zircons;Silver;Nucl. Sci. Ser. Rep. 38, Natl. Acad. Sci. U.S. Publ.,1963