@article{IVM_1964_5_a16,
     author = {F. I. \v{S}midov},
     title = {Countability of a~set},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {115--117},
     publisher = {mathdoc},
     number = {5},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1964_5_a16/}
}