%0 Journal Article %A Yu. F. Dolgii %A S. G. Nikolaev %T On the stability of a periodic system of differential equations with delay %J Differencialʹnye uravneniâ %D 1999 %P 1330-1336 %V 35 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1999_35_10_a4/ %G ru %F DE_1999_35_10_a4