1. C. Bloch, Nuclear Physics, Les Houches, 1968, Gordon and Breach, p. 351.
2. A. Bohr and B. R. Mottelson, Nuclear Structure, W. A. Benjamin, 1969, app. 2C.
3. R. Kubo, in “Polarization, Matière et Rayonnement”, Press. Univ. de France, Paris, 1970.
4. J. E. Lynn, The Theory of Neutron Resonance Reactions, Clarendon Press, Oxford, 1968, chapter 5.
5. M. L. Mehta, Random Matrices, Academic Press, New York, 1967.