1. R. G. Gallager (1968) Information Theory and Reliable Communication ( New York: Wiley).
2. T. Berger (1971) Rate Distortion Theory ( Englewood Cliffs, N.J.: Prentice-Hall).
3. R. Hermann (1966) Lie Groups for Physicists ( Reading, Mass.: Benjamin/Cummings).
4. V. S. Varadarajan (1970) Geometry of Quantum Theory ( I I ) ( New York: Van Nostrand Reinhold ).
5. G. W. Mackey (1976) The Theory of Unitary Group Representations ( Chicago: University of Chicago Press).