TY - JOUR AU - G. G. Magaril-Il'yaev TI - Mean dimension and widths of classes of functions on the line JO - Doklady Akademii Nauk PY - 1991 SP - 35 EP - 38 VL - 318 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1991_318_1_a6/ LA - ru ID - DAN_1991_318_1_a6 ER -