@article{MZM_1992_52_1_a14,
     author = {N. N. Pustovoitov},
     title = {The multidimensional {Jackson} theorem in $L_p$},
     journal = {Matemati\v{c}eskie zametki},
     pages = {105--113},
     year = {1992},
     volume = {52},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1992_52_1_a14/}
}