%0 Journal Article
%A A. M. Zverkin
%T Comparison theorems for oscillatory solutions of equations with lag
%J Differencialʹnye uravneniâ
%D 1977
%P 1951-1956
%V 13
%N 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1977_13_11_a5/
%G ru
%F DE_1977_13_11_a5