%0 Journal Article
%A V. N. Laptinskii
%T A study of the stability of linear periodic differential systems by the method of variation of a parameter
%J Differencialʹnye uravneniâ
%D 1976
%P 1715-1718
%V 12
%N 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1976_12_9_a19/
%G ru
%F DE_1976_12_9_a19