@article{Costich:1972vj,
    Author = {Costich, O. L.},
    Date = {1972/03/01},
    File = {A Medvedev Characterization of Sets Recognized by Generalized Finite Automata - Costich1972\_Article\_AMedvedevCharacterizationOfSet.pdf},
    ISBN = {1433-0490},
    Journal = {Mathematical systems theory},
    Number = {1},
    Pages = {263--267},
    Title = {A Medvedev characterization of sets recognized by generalized finite automata},
    URL = {https://doi.org/10.1007/BF01706094},
    Volume = {6},
    Year = {1972},
    bdsk-url-1 = {https://doi.org/10.1007/BF01706094},
    date-added = {2022-06-15 10:35:42 +0200},
    date-modified = {2022-06-15 10:35:49 +0200},
    id = {Costich1972},
    doi = {10.1007/BF01706094}
}

@article{Costich:1972vj, Author = {Costich, O. L.}, Date = {1972/03/01}, File = {A Medvedev Characterization of Sets Recognized by Generalized Finite Automata - Costich1972_Article_AMedvedevCharacterizationOfSet.pdf}, ISBN = {1433-0490}, Journal = {Mathematical systems theory}, Number = {1}, Pages = {263--267}, Title = {A Medvedev characterization of sets recognized by generalized finite automata}, URL = {https://doi.org/10.1007/BF01706094}, Volume = {6}, Year = {1972}, bdsk-url-1 = {https://doi.org/10.1007/BF01706094}, date-added = {2022-06-15 10:35:42 +0200}, date-modified = {2022-06-15 10:35:49 +0200}, id = {Costich1972}, doi = {10.1007/BF01706094} }