1. J. M. Souriau:Commun. Math. Phys.,1, 374 (1966);Structure des systàeme dynamiques (Paris, 1970).
2. B. Kostant:Quantization and unitary representations, inLecture Notes in Mathematics, Vol.170 (New York, N. Y., 1970), p. 87–208; see alsoGáeometrie symplectique et physique matháematique, in Colloquium International CNRS, Vol.237 (Paris, 1975), p. 187–210.
3. For recent accounts on the method of geometric quantization see,e.g.,D. J. Simms andN. M. J. Woodhouse:Lectures on Geometric Quantization (Berlin, and New York, N. Y., 1976);R. Abraham andJ. E. Marsden:Foundations of Mechanics, II ed. (Reading, Mass. 1978);J. áSniatycki:Geometric Quantization and Quantum Mechanics (New York, N. Y., 1980) (this book contains a good bibliography).
4. V. Aldaya and J. A. de Azcáaraga: Riv. Nuovo Cimento, 3, No. 10 (1980).
5. V. Aldaya andJ. A. de Azcáarraga:J. Math. Phys. (N. Y.),22, 1425 (1981).