TY  - JOUR
AU  - A. F. Izmailov
TI  - Some generalizations of the Morse lemma
JO  - Informatics and Automation
PY  - 1998
SP  - 142
EP  - 156
VL  - 220
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1998_220_a8/
LA  - ru
ID  - TRSPY_1998_220_a8
ER  -