TY - JOUR AU - A. A. Kelzon TI - Sharp estimates of Fourier--Lagrange coefficients of functions of bounded variation JO - Matematičeskie zametki PY - 1993 SP - 52 EP - 62 VL - 53 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1993_53_6_a6/ LA - ru ID - MZM_1993_53_6_a6 ER -