TY - JOUR AU - A. V. Kuzhel' TI - Spectral analysis of unbounded non-selfadjoint operators in a space with indefinite metric JO - Doklady Akademii Nauk PY - 1968 SP - 31 EP - 33 VL - 178 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1968_178_1_a6/ LA - ru ID - DAN_1968_178_1_a6 ER -