@article{RM_1963_18_4_a15,
     author = {L. V. Taikov},
     title = {On the best linear methods of approximating functions of classes~$B^r$ and~$H^r$},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     publisher = {mathdoc},
     volume = {18},
     number = {4},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1963_18_4_a15/}
}