TY - JOUR AU - S. A. Telyakovskii TI - Approximation to functions differentiable in Weyl's sense by de la Vallee-Poussin sums JO - Doklady Akademii Nauk PY - 1960 SP - 259 EP - 262 VL - 131 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1960_131_2_a10/ LA - ru ID - DAN_1960_131_2_a10 ER -