00752nam0-22002651i-450-990001261830403321000126183FED01000126183(Aleph)000126183FED0100012618320000920d1985----km-y0itay50------baengSingularities and Groups in Bifurcation TheoryNew York [etc.]Springer-Verlag1985Applied mathematical sciences51vol I ̜Golubitsky,Martin21354ITUNINARICAUNIMARCBK990001261830403321C-33-(51809MA1MA1Singularities and groups in bifurcation theory126710UNINAING01