1. Barbara, B., Sampaio, L.C., Wegrowe, J.E., et al. (1993) J. Appl. Phys. 73, 6703–6708.
2. Barbara, B., and Chudnovsky, E.M. (1990) Phys. Lett. A 145, 205–208.
3. Bellman, R. (1970) Introduction to Matrix Analysis , 2nd ed., MacGraw-Hill, New York.
4. Bohm, D. (1951) Quantum Theory, Prentice-Hall, Englewood Cliffs, NJ; reprinted by Dover (Mineola, NY, 1989). See in particular Chapter 12.
5. Brink, D.M. and Satchler, G.R. (1968) Angular Momentum, 2nd ed., Oxford University Press, Oxford; in particular, Eqs. (2.15), (2.17) and (2.18).