@article{TIMM_2010_16_4_a9,
     author = {S. N. Vasil'ev},
     title = {Jackson inequality in $L_2(\mathbb R^N)$ with generalized modulus of continuity},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {93--99},
     year = {2010},
     volume = {16},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2010_16_4_a9/}
}