1. Baldwin, G.C. and Klaiber, G.S. Phys. Rev. 71, 3(1947) and 73, 1156 (1948).
2. Goldhaber, M. and Teller, E. Phys. Rev. 74, 1046 (1948).
3. Photonuelear Reactions and Applications (Asilomar Conf., 1973) B.L. Berman, ed. (Lawrence Livermore National Laboratory, Livermore, 1973).
4. Katz, L., Asilomar Conf., p. 5.
5. Feshbach, H., Asilomar Conf., p. 1343.