@article{Elgot_1965,
    doi = {10.1147/rd.91.0047},
    url = {https://doi.org/10.1147%2Frd.91.0047},
    year = {1965},
    month = {jan},
    publisher = {{IBM}},
    volume = {9},
    number = {1},
    pages = {47--68},
    author = {C. C. Elgot and J. E. Mezei},
    title = {On Relations Defined by Generalized Finite Automata},
    journal = {{IBM} Journal of Research and Development}
}

@article{Elgot_1965, doi = {10.1147/rd.91.0047}, url = {https://doi.org/10.1147%2Frd.91.0047}, year = {1965}, month = {jan}, publisher = {{IBM}}, volume = {9}, number = {1}, pages = {47--68}, author = {C. C. Elgot and J. E. Mezei}, title = {On Relations Defined by Generalized Finite Automata}, journal = {{IBM} Journal of Research and Development} }