@article{IVM_2014_5_a4,
     author = {M. Kh. Faizrakhmanov},
     title = {Arithmetical level of a~class of superhigh sets},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {53--58},
     publisher = {mathdoc},
     number = {5},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2014_5_a4/}
}