TY - JOUR AU - Yu. I. Lyubich AU - V. I. Matsaev TI - On the spectral theory of linear operators in Banach spaces JO - Doklady Akademii Nauk PY - 1960 SP - 21 EP - 23 VL - 131 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1960_131_1_a3/ LA - ru ID - DAN_1960_131_1_a3 ER -