TY - JOUR AU - V. P. Motornyi TI - Approximation of periodic functions by trigonometric polynomials in the mean JO - Matematičeskie zametki PY - 1974 SP - 15 EP - 26 VL - 16 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1974_16_1_a1/ LA - ru ID - MZM_1974_16_1_a1 ER -