00313nam a2200121Ia 4500082002100000100002400021245004900045260003400094300001400128490003900142500000500181700000500186  a515.35bSa253.TS  aSattinger, David H.  aTopics in stability and bifurcation theoryb  aBerlinbSpringer-Verlagc1973  avi, 190p.  aLecture notes in Mathematicsv 309  a  a