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@article{DAN_1979_248_3_a2, author = {V. N. Temlyakov}, title = {Approximation of periodic functions of several variables with bounded mixed derivative}, journal = {Doklady Akademii Nauk}, pages = {527--531}, publisher = {mathdoc}, volume = {248}, number = {3}, year = {1979}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1979_248_3_a2/} }
V. N. Temlyakov. Approximation of periodic functions of several variables with bounded mixed derivative. Doklady Akademii Nauk, Tome 248 (1979) no. 3, pp. 527-531. http://geodesic.mathdoc.fr/item/DAN_1979_248_3_a2/