%0 Journal Article %A B. A. Plamenevskii %T On the existence and asymptotics of solutions of differential equations with unbounded operator coefficients in a~Banach space %J Izvestiya. Mathematics %D 1972 %P 1327-1379 %V 6 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1972_6_6_a7/ %G en %F IM2_1972_6_6_a7