00823nam0-22002771i-450-99000102649040332120070123112246.0000102649FED01000102649(Aleph)000102649FED0100010264920001205d1967----km-y0itay50------baengFIProceedings of liperi summer school in theoretical physics 1966HelsinkiResearch Institute for Theoretical Physics1967Part A: Elementary particle physicsScuole di fisica530.143ITUNINARICAUNIMARCBK99000102649040332122B-0295645FI1FI1Proceedings of liperi summer school in theoretical physics 1966339449UNINA