%0 Journal Article
%A N. B. Medvedeva
%T The problem of the stability of singular points on the plane from the point of view of algebraic and analytic solvability
%J Differencialʹnye uravneniâ
%D 1989
%P 605-610
%V 25
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1989_25_4_a6/
%G ru
%F DE_1989_25_4_a6