%0 Journal Article %A V. V. Gorodestkii %T Polynomial representation of solutions of operator-differential equations of hyperbolic type in a Hilbert space %J Differencialʹnye uravneniâ %D 1991 %P 941-947 %V 27 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1991_27_6_a2/ %G ru %F DE_1991_27_6_a2