TY - JOUR AU - F. S. Rofe-Beketov AU - A. M. Khol'kin TI - A fundamental system of solutions for an operator differential equation with a boundary condition at infinity JO - Matematičeskie zametki PY - 1984 SP - 697 EP - 709 VL - 36 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1984_36_5_a7/ LA - ru ID - MZM_1984_36_5_a7 ER -