@article{IVM_1982_7_a14,
     author = {I. R. Nasyrov},
     title = {Representability of languages in deterministic and nondeterministic automata with a~countable number of states},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {79--80},
     publisher = {mathdoc},
     number = {7},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1982_7_a14/}
}