@article{TRSPY_2014_284_a1,
     author = {D. B. Bazarkhanov},
     title = {Nonlinear approximations of classes of periodic functions of many variables},
     journal = {Informatics and Automation},
     pages = {8--37},
     publisher = {mathdoc},
     volume = {284},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2014_284_a1/}
}