%0 Journal Article
%A C. Tunç
%A E. Tunç
%T An instability theorem for a class of eighth-order differential equations
%J Differencialʹnye uravneniâ
%D 2006
%P 135-138
%V 42
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_2006_42_1_a13/
%G ru
%F DE_2006_42_1_a13