@article{Reutenauer_1985,
    title = {The shuffle algebra on the factors of a word is free},
    volume = {38},
    issn = {0097-3165},
    url = {http://dx.doi.org/10.1016/0097-3165(85)90020-2},
    doi = {10.1016/0097-3165(85)90020-2},
    number = {1},
    journal = {Journal of Combinatorial Theory, Series A},
    publisher = {Elsevier BV},
    author = {Reutenauer, Christophe},
    year = {1985},
    month = {jan},
    pages = {48–57},
    date-added = {2024-4-5 9:47:44 +0100}
}

@article{Reutenauer_1985, title = {The shuffle algebra on the factors of a word is free}, volume = {38}, issn = {0097-3165}, url = {http://dx.doi.org/10.1016/0097-3165(85)90020-2}, doi = {10.1016/0097-3165(85)90020-2}, number = {1}, journal = {Journal of Combinatorial Theory, Series A}, publisher = {Elsevier BV}, author = {Reutenauer, Christophe}, year = {1985}, month = {jan}, pages = {48–57}, date-added = {2024-4-5 9:47:44 +0100} }