TY - JOUR AU - O. A. Veliev TI - The one-dimensional Schr\"odinger operator with a periodic complex-valued potential JO - Doklady Akademii Nauk PY - 1980 SP - 1292 EP - 1296 VL - 250 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1980_250_6_a1/ LA - ru ID - DAN_1980_250_6_a1 ER -