%0 Journal Article %A I. V. Mel'nikova %A A. I. Filinkov %T Classification with respect to boundary value problems of a~complete second-order equation in a~Banach space %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1990 %P 39-45 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1990_6_a7/ %G ru %F IVM_1990_6_a7