@article{UMJ_2018_4_2_a3,
     author = {Niyazi A. Il'yasov},
     title = {Order equalities in different metrics for moduli of smoothness of various orders},
     journal = {Ural mathematical journal},
     pages = {24--32},
     publisher = {mathdoc},
     volume = {4},
     number = {2},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UMJ_2018_4_2_a3/}
}