1. J. Wess andB. Zumino:Nucl. Phys. B,70, 39 (1974);Phys. Lett. B,49, 52 (1974);B. Zumino:Supersymmetry and Supergravity, preprint UCB-PTH-83/2 and LBL-15819, March 1983.
2. P. Fayet:Proceedings of the Orbits Scientiae, Coral Gables, Fla., January, 1978; New Frontières in High Energy Physics (Plenum, 1978);G. R. Farrar:Proceedings of the International School of Subnuclear Physics, Erice, Italy, August 1978;F. Fayet andS. Ferrara:Phys. Rep. C,32, 249 (1977);
3. P. Fayet:Phys. Lett. B,69, 489 (1977);
4. G. R. Farrar andP. Fayet:Phys. Lett. B,76, 575 (1978);79, 442 (1978).
5. J. Ellis:Supersymmetry and Grand Unified Theories, CERN preprint-TH 3718, Sept. 1983.