%0 Journal Article
%A B. S. Kalitin
%T On a comparison method for a problem of stability of periodic systems
%J Differencialʹnye uravneniâ
%D 1987
%P 423-428
%V 23
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1987_23_3_a6/
%G ru
%F DE_1987_23_3_a6