%0 Journal Article
%A A. F. Andreev
%A V. Kuznetsov
%T A theorem on the uniqueness of the $O$-curve in $N_2$ under conditions of the type of the Osgood condition
%J Differencialʹnye uravneniâ
%D 1970
%P 2080-2082
%V 6
%N 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1970_6_11_a16/
%G ru
%F DE_1970_6_11_a16