@article{MZM_1989_46_4_a0,
     author = {R. R. Ashurov},
     title = {Localization conditions of square partial sums of a multiple trigonometric {Fourier} series in the classes of {S.} {M.~Nikol'skii}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {3--7},
     year = {1989},
     volume = {46},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1989_46_4_a0/}
}