@article{Shamir_1967,
    title = {A representation theorem for algebraic and context-free power series in noncommuting variables},
    volume = {11},
    issn = {0019-9958},
    url = {http://dx.doi.org/10.1016/S0019-9958(67)90529-3},
    doi = {10.1016/s0019-9958(67)90529-3},
    number = {1–2},
    journal = {Information and Control},
    publisher = {Elsevier BV},
    author = {Shamir, Eliahu},
    year = {1967},
    month = {jul},
    pages = {239–254},
    date-added = {2025-2-21 22:20:48 +0100}
}

@article{Shamir_1967, title = {A representation theorem for algebraic and context-free power series in noncommuting variables}, volume = {11}, issn = {0019-9958}, url = {http://dx.doi.org/10.1016/S0019-9958(67)90529-3}, doi = {10.1016/s0019-9958(67)90529-3}, number = {1–2}, journal = {Information and Control}, publisher = {Elsevier BV}, author = {Shamir, Eliahu}, year = {1967}, month = {jul}, pages = {239–254}, date-added = {2025-2-21 22:20:48 +0100} }