TY - JOUR AU - E. D. Nursultanov TI - Letter to the editor: “On multipliers of Fourier series in a trigonometric system” JO - Matematičeskie zametki PY - 1999 SP - 953 VL - 65 IS - 6 UR - http://geodesic.mathdoc.fr/item/MZM_1999_65_6_a20/ LA - ru ID - MZM_1999_65_6_a20 ER -