%0 Journal Article
%A Yu. A. Konyaev
%T Sequential analysis of periodic systems with a small parameter multiplying the derivative in the presence of purely imaginary (including identically multiple) points in the spectrum of the limit operator
%J Differencialʹnye uravneniâ
%D 1985
%P 1085-1089
%V 21
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1985_21_6_a25/
%G ru
%F DE_1985_21_6_a25