01119nam0-22003251i-450-9900009510104033213-211-81676-3000095101FED01000095101(Aleph)000095101FED0100009510120000920d1981----km-y0itay50------baengNew Developments in Mathematical PhysicsProceedings of the 20 Internationale Universitatswochen fur Kernphysik 1981 der Karl-Franzens-Universitat Graz at Schladming (Steiermark, Austria) February 17th-26th, 1981edited by Heinrich Mitter and Ludwig PittnerWien [etc.]Springer-Verlag1981Acta physica austriaca23With 54 Figures.Scuole di fisica530.143Mitter,Heinrich44168Pittner,LudwigITUNINARICAUNIMARCBK99000095101040332122B-010.02211772FI122B-010.22A15514FI1FI1New Developments in Mathematical Physics338920UNINAING01