00308nam a2200121Ia 4500082001700000100002900017245004700046260003400093300001000127490003900137500000500176700000500181  a516bG449.TS  aGibson, C. G. and Others  aTopological stability of smooth mappingsb  aBerlinbSpringer-Verlagc1976  a155p.  aLecture notes in Mathematicsv 552  a  a