%0 Journal Article
%A S. G. Kondratenya
%T Characterizations of the complexity of singular points of solutions to nonlinear systems of two differential equations
%J Differencialʹnye uravneniâ
%D 1979
%P 1580-1591
%V 15
%N 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1979_15_9_a4/
%G ru
%F DE_1979_15_9_a4