@article{DAN_1973_208_6_a5,
     author = {N. S. Nikol'skaya},
     title = {Approximation of differentiable functions of several variables by {Fourier} sums in the $L_p$ metric},
     journal = {Doklady Akademii Nauk},
     pages = {1282--1285},
     publisher = {mathdoc},
     volume = {208},
     number = {6},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_208_6_a5/}
}