1. E. C. Halbert, J. B. McGrory, B. H. Wildenthal, and S. P. Pandya, Advances in Nuclear Physics, Vol. 3 (M. Baranger and E. Vogt, eds.) Plenum Press, New York, 1969.
2. J. B. French., E. C. Halbert, J. B. McGrory, and S. S. M. Wong, Advances in Nuclear Physics, Vol. 4 (M. Baranger and E. Vogt, eds.) Plenum Press, New York, 1971
3. S. Cohen, R. D. Lawson, M. H. Macfarlane, and M. Soga, Methods in Computational Physics (B. Alder, S. Feinbach, and M. Rosenberg, eds.) Academic Press, New York and London (1969).
4. J. D. McCullen, B. F. Bayman, and L. Zamick, Phys. Rev. 134 (1964) B515;
5. J. N. Ginocchio and J. B. French, Phys. Letters 7 (1963) 137.