1. 1. See, for example, R. Naudet, Oklo: des réacteurs nucléaires fossiles, Collection CEA, Eyrolles, Paris, 1991
2. 2. The Oklo Phenomenon, Proc. of a Symposium, Libreville, June, 1975 (IAEA, Vienna, 1975)
3. 3. P.K. Kuroda, J. Chem. Phys. 25, 781, 1295 (1956)
4. 4. A.I. Shlyakhter, Nature 264, 340 (1976)
5. 5. A.I. Shlyakhter, ATOMKI Report A/1, unpublished (1983), physics/0307023