TY  - BOOK
AU  - Ruffini, Remo
TI  - Proceedings of the first Marcel Grossman Meeting on General Relativity organized and held at the International Centre for Theoretical Physics, Trieste and Istituto di Fisica Teorica, University of Trieste, 7-12 July, 1975
PY  - 1977///
CY  - Amsterdam : 
PB  - North-Holland, 
ER  -