Ed. by C. Aragone.Silarg Symposium on Gravity, Gauge Theories and Supergravity (4th : 1982 : Caracas):Relativity Cosmology toplolgical mss and supergravity, proceedings of the Symposium.World Seientific,1983.
Silarg Symposium on Gravity, Gauge Theories and Supergravity (4th : 1982 : Caracas):Relativity Cosmology toplolgical mss and supergravity, proceedings of the Symposium