%0 Journal Article
%A I. A. Frid
%T On the stability of solutions of a linear differential equation with retardation in the critical case
%J Uchenye Zapiski Moskovskogo Gosudarstvennogo Universiteta
%D 1956
%P 73-82
%V 181
%N 181
%I mathdoc
%U http://geodesic.mathdoc.fr/item/UZMU_1956_181_181_a5/
%G ru
%F UZMU_1956_181_181_a5