%0 Journal Article %A L. V. Taikov %T On the best linear methods of approximating functions of classes~$B^r$ and~$H^r$ %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1963 %V 18 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1963_18_4_a15/ %G ru %F RM_1963_18_4_a15