%0 Journal Article %A V. B. Osipov %T Asymptotic integration of a~second order differential equation in a~Banach space %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1970 %P 76-82 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1970_6_a8/ %G ru %F IVM_1970_6_a8