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@article{DAN_1973_208_3_a11, author = {S. Z. Rafal'son}, title = {The approximation of functions by algebraic polynomials in the $L_p$ metric}, journal = {Doklady Akademii Nauk}, pages = {545--547}, publisher = {mathdoc}, volume = {208}, number = {3}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1973_208_3_a11/} }
S. Z. Rafal'son. The approximation of functions by algebraic polynomials in the $L_p$ metric. Doklady Akademii Nauk, Tome 208 (1973) no. 3, pp. 545-547. http://geodesic.mathdoc.fr/item/DAN_1973_208_3_a11/