%0 Journal Article
%A M. S. Gabrielyan
%A S. G. Shahinyan
%T On the non-stability of differential equation systems in case of small integral perturbations
%J Proceedings of the Yerevan State University. Physical and mathematical sciences
%D 1989
%P 27-32
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/UZERU_1989_1_a4/
%G ru
%F UZERU_1989_1_a4