%0 Journal Article %A Yu. F. Dolgii %T Application of self-adjoint boundary value problems to investigation of stability of periodic delay systems %J Trudy Instituta matematiki i mehaniki %D 2006 %P 78-87 %V 12 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TIMM_2006_12_2_a6/ %G ru %F TIMM_2006_12_2_a6