%0 Journal Article
%A R. G. Koplatadze
%T The existence of oscillatory solutions of second-order nonlinear differential equations with retarded argument
%J Doklady Akademii Nauk
%D 1973
%P 260-262
%V 210
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1973_210_2_a1/
%G ru
%F DAN_1973_210_2_a1