1. Abers, E. S., and Lee, W. B. (1973).Physics Reports,9C, 1.
2. Adler, S. L., and Bardeen, W. A. (1971).Physical Review D,4, 1094.
3. Bialynicki-Birula, I. (1962).Journal of Mathematical Physics,3, 1094.
4. Bjorken, J. D., and Drell, S. D. (1965).Relativistic Quantum Fields, McGraw-Hill, New York.
5. Faddeev, L. D. (1981). InMethods in Field Theory, R. Balian and Z. Justin, eds., North-Holland, Amsterdam.