1. There exist several excellent recent reviews of the subject: H. Haber and G. Kane, Phys. Rep. 117, 76 (1984).
2. H. P. Nilles, Phys. Rep. 110, 1 (1984);
3. R. Arnowitt, A. Chamseddine, and P. Nath, N = 1 Supergravity, World Scientific, Singapore, 1984.
4. P. Fayet, Nucl. Phys. B90, 104 (1975);
5. R. K. Kaul and P. Majumdar, Nucl. Phys. B199, 36 (1982).