TY - JOUR AU - I. V. Mel'nikova AU - A. I. Filinkov TI - Classification with respect to boundary value problems of a~complete second-order equation in a~Banach space JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1990 SP - 39 EP - 45 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1990_6_a7/ LA - ru ID - IVM_1990_6_a7 ER -