TY - JOUR AU - M. A. Mustafin TI - Summability of root vector series of nonlocal elliptic problems by the Abel method JO - Differencialʹnye uravneniâ PY - 1990 SP - 167 EP - 168 VL - 26 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1990_26_1_a22/ LA - ru ID - DE_1990_26_1_a22 ER -