%0 Journal Article
%A E. A. Kudryavtseva
%T Uniform Morse lemma and isotopy criterion for Morse functions on surfaces
%J Vestnik Moskovskogo universiteta. Matematika, mehanika
%D 2009
%P 13-22
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/VMUMM_2009_4_a2/
%G ru
%F VMUMM_2009_4_a2