@article{IVM_1961_2_a10,
     author = {L. P. Lebedeva},
     title = {A problem of {S.} {M.~Nikol'ski\u{i}} for an approximation method},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {109--125},
     year = {1961},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1961_2_a10/}
}