00787nam0-22002411i-450-990001206140403321000120614FED01000120614(Aleph)000120614FED0100012061420000920d1980----km-y0itay50------baengMathematicalProblems in Theorical Physics. Proceedings of the International Conference on Mathematical Physics held in Lausanne, Switzerland August 20-25, 1979Edited by K. Osterwalder.Berlin [etc.]Springer-Verlag1980Lecture notes in physics116ITUNINARICAUNIMARCBK990001206140403321113-D-535393MA1MA1Mathematical343641UNINAING01