1. I.A.E.A.: Le phénomène d'Oklo, STI/PUB/405, Vienna, 1975.
2. I.A.E.A.: Natural Fission Reactors, STI/PUB/475, Vienna, 1978.
3. P. K. Kuroda, J. Chem. Phys., 25 (1956) 781.
4. Proceedings of the 2nd joint CEC-CEA progress meeting. CEC Nucl. Sci. and Tech. EUR 14877EN, 1993.
5. Proceedings of the 3rd joint CEC-CEA progress meeting. CEC Nucl. Sci. and Tech. EUR 16098EN, 1995.