TY - JOUR AU - Yu. M. Shmandin TI - Summability of orthogonal series by some linear methods JO - Matematičeskie zametki PY - 1969 SP - 753 EP - 762 VL - 5 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1969_5_6_a13/ LA - ru ID - MZM_1969_5_6_a13 ER -