1. K. S. Krane, in Low Temperature Nuclear Orientation, Ed. by Stone and Postma (North Holland, Amsterdam 1986), Chapter 2.
2. N. J. Stone, Hyp. Int. 22, 3 (1985).
3. E. Klein, op.cit., Ref. 1, Chap. 12
4. T. L. Shaw and N. J. Stone, Atom. Nucl. Data Tables
42, 339 (1989); Hyp. Int. 43, 299 (1988).
5. T. L. Shaw, Ph.D. Thesis, Oxford, 1987.