%0 Journal Article %A M. Yu. Kokurin %T Asymptotic behavior of periodic solutions of a class of operator-differential equations %J Differencialʹnye uravneniâ %D 1993 %P 1400-1407 %V 29 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1993_29_8_a13/ %G ru %F DE_1993_29_8_a13