TY  - JOUR
AU  - E. A. Kudryavtseva
TI  - Uniform Morse lemma and isotopy criterion for Morse functions on surfaces
JO  - Vestnik Moskovskogo universiteta. Matematika, mehanika
PY  - 2009
SP  - 13
EP  - 22
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VMUMM_2009_4_a2/
LA  - ru
ID  - VMUMM_2009_4_a2
ER  -