TY - JOUR AU - Yu. A. Mamedov TI - An expansion formula in the case of a spectral problem with JO - Doklady Akademii Nauk PY - 1988 SP - 1059 EP - 1063 VL - 300 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1988_300_5_a6/ LA - ru ID - DAN_1988_300_5_a6 ER -