%0 Journal Article %A Yu. F. Dolgii %T Characteristic equation in the problem of asymptotic stability in periodic systems with aftereffect %J Trudy Instituta matematiki i mehaniki %D 2005 %P 85-96 %V 11 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TIMM_2005_11_1_a8/ %G ru %F TIMM_2005_11_1_a8