TY - JOUR AU - K. Tandori TI - Orthogonal series and approximations of functions JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1983 SP - 169 EP - 179 VL - 164 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM_1983_164_a10/ LA - ru ID - TM_1983_164_a10 ER -