TY - JOUR AU - V. È. Gheit TI - Order of $(C,\alpha)$-approximations on certain classes of periodic functions JO - Matematičeskie zametki PY - 1974 SP - 15 EP - 20 VL - 15 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1974_15_1_a1/ LA - ru ID - MZM_1974_15_1_a1 ER -