%0 Journal Article
%A Ch. A. Skhalyaho
%T The oscillatory nature of solutions of systems of two differential equations with sign-variable right-hand sides
%J Differencialʹnye uravneniâ
%D 1992
%P 1736-1747
%V 28
%N 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1992_28_10_a9/
%G ru
%F DE_1992_28_10_a9