%0 Journal Article
%A R. I. Bogdanov
%T Versal deformations of singular points of vector fields on a plane
%J Funkcionalʹnyj analiz i ego priloženiâ
%D 1979
%P 63-64
%V 13
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FAA_1979_13_1_a8/
%G ru
%F FAA_1979_13_1_a8