@article{IVM_2022_3_a6,
     author = {Kh. M. Khuromonov},
     title = {Exact inequalities between the best polynomial approximations and averaged norms of finite differences in the $B_{2}$ space and widths of some classes of functions},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {61--70},
     publisher = {mathdoc},
     number = {3},
     year = {2022},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2022_3_a6/}
}