01133nam2-22003851i-450-99000144821040332120130125123557.0000144821FED01000144821(Aleph)000144821FED0100014482120130125d1990----km-y0itay50------baengGBString theoryproceedings of a conference held in Rome, Italy, 6-10 june 1988editors Claudio Procesi, Augusto SagnottiLondon [ecc.]Academic Press1990178 p.25 cm0010000837762001Symposia mathematica33Meccanica quantistica530.12Procesi,ClaudioSagnotti,AugustoIstituto nazionale di alta matematica Francesco Severi284877ITUNINARICAUNIMARCBK990001448210403321C-66-(33MA1MXXXI-A-2944533MASROT-05222321MA1MA1MAS81-0617-06String theory374328UNINA