TY - JOUR AU - A. V. Gulin AU - A. V. Kregzhde AU - N. P. Savenkova TI - Difference methods for solving some spectral problems JO - Differencialʹnye uravneniâ PY - 1983 SP - 1207 EP - 1215 VL - 19 IS - 7 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1983_19_7_a11/ LA - ru ID - DE_1983_19_7_a11 ER -