@article{MZM_2010_87_3_a10,
     author = {A. S. Romanyuk},
     title = {Approximation of {Classes} $B^r_{p,\theta}$ of {Periodic} {Functions} of {One} and {Several} {Variables}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {429--442},
     publisher = {mathdoc},
     volume = {87},
     number = {3},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2010_87_3_a10/}
}