TY - JOUR AU - N. K. Nikol'skii TI - Spectral analysis on the unitary spectrum. The point spectrum JO - Doklady Akademii Nauk PY - 1971 SP - 544 EP - 547 VL - 199 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1971_199_3_a9/ LA - ru ID - DAN_1971_199_3_a9 ER -