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@article{FAA_1973_7_4_a14, author = {A. S. Nemirovskii}, title = {Polynomial approximation of functions in a {Hilbert} space}, journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a}, pages = {88--89}, publisher = {mathdoc}, volume = {7}, number = {4}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/FAA_1973_7_4_a14/} }
A. S. Nemirovskii. Polynomial approximation of functions in a Hilbert space. Funkcionalʹnyj analiz i ego priloženiâ, Tome 7 (1973) no. 4, pp. 88-89. http://geodesic.mathdoc.fr/item/FAA_1973_7_4_a14/