%0 Journal Article
%A I. V. Kamenev
%T The oscillatoriness of the solutions of a second order nonlinear equation with a sign-variable coefficient
%J Differencialʹnye uravneniâ
%D 1970
%P 1718-1721
%V 6
%N 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1970_6_9_a20/
%G ru
%F DE_1970_6_9_a20