TY - JOUR AU - M. F. Timan TI - Some linear summation processes for Fourier series and best approximation JO - Doklady Akademii Nauk PY - 1962 SP - 741 EP - 743 VL - 145 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1962_145_4_a10/ LA - ru ID - DAN_1962_145_4_a10 ER -