00754nam0-22002651i-450-990001280030403321000128003FED01000128003(Aleph)000128003FED0100012800320000920d1979----km-y0itay50------baengGroup theoretic methods in bifurcation theoryby SATTINGERBerlin [etc.]Springer-Verlag1979Lecture Notes In MathematicsSattinger,David H.40559ITUNINARICAUNIMARCBK990001280030403321C-20-(76219903MA1MA1Group theoretic methods in bifurcation theory80580UNINAING01