TY  - JOUR
AU  - Michael Reeken
TI  - Stability of Critical Points under Small Perturbations. Part I: Topological Theory.
JO  - Manuscripta mathematica
PY  - 1972
SP  - 387
EP  - 411
VL  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MM2_1972__7_154128/
ID  - MM2_1972__7_154128
ER  -