@article{TRSPY_1980_156_a13,
     author = {V. N. Temlyakov},
     title = {Approximation of periodic functions of several variables with a~bounded mixed derivative},
     journal = {Informatics and Automation},
     pages = {233--260},
     publisher = {mathdoc},
     volume = {156},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1980_156_a13/}
}