%0 Journal Article %A G. G. Magaril-Il'yaev %T Mean dimension and widths of classes of functions on the line %J Doklady Akademii Nauk %D 1991 %P 35-38 %V 318 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1991_318_1_a6/ %G ru %F DAN_1991_318_1_a6