%0 Journal Article
%A N. I. Shkil'
%T Systems of linear differential equations with a small parameter coefficient of some of the derivatives
%J Differencialʹnye uravneniâ
%D 1965
%P 868-879
%V 1
%N 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1965_1_7_a1/
%G ru
%F DE_1965_1_7_a1