ed. by J. Ellis & S. Ferrara.Europhysics Study Conference on Unification of the Fundamental Particle Interactions (2nd : 1981: Erice, Italy)：Unification of the Fundamental Particle Interactions ．Ⅱ.Plenum Pr.,1983.
Europhysics Study Conference on Unification of the Fundamental Particle Interactions (2nd : 1981: Erice, Italy)：Unification of the Fundamental Particle Interactions ．Ⅱ
