TY - JOUR AU - O. V. Davydov TI - Approximation of functions of class $C(\varepsilon)$ by sequences of de la Vall\'ee-Poussin sums JO - Matematičeskie zametki PY - 1991 SP - 33 EP - 41 VL - 49 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1991_49_6_a4/ LA - ru ID - MZM_1991_49_6_a4 ER -