%0 Journal Article
%A Yu. N. Bibikov
%T The reducibility of a system of two differential equations to normal form
%J Differencialʹnye uravneniâ
%D 1971
%P 1899-1902
%V 7
%N 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1971_7_10_a16/
%G ru
%F DE_1971_7_10_a16