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@article{DAN_1973_213_3_a6, author = {N. P. Korneichuk}, title = {On uniform approximation of periodic functions by subspaces of finite dimension}, journal = {Doklady Akademii Nauk}, pages = {525--528}, publisher = {mathdoc}, volume = {213}, number = {3}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1973_213_3_a6/} }
N. P. Korneichuk. On uniform approximation of periodic functions by subspaces of finite dimension. Doklady Akademii Nauk, Tome 213 (1973) no. 3, pp. 525-528. http://geodesic.mathdoc.fr/item/DAN_1973_213_3_a6/