TY - JOUR AU - Ya. Sh. Salimov TI - Riesz means of biorthogonal expansions in eigen- and associated JO - Doklady Akademii Nauk PY - 1986 SP - 291 EP - 295 VL - 286 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1986_286_2_a7/ LA - ru ID - DAN_1986_286_2_a7 ER -