%0 Journal Article
%A A. V. Kostin
%T Asymptotic series in the theory of nonlinear systems of ordinary differential equations. I
%J Differencialʹnye uravneniâ
%D 1967
%P 875-889
%V 3
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1967_3_6_a0/
%G ru
%F DE_1967_3_6_a0