@article{Reutenauer_1980,
    doi = {10.1007/bf00263993},
    url = {https://doi.org/10.1007%2Fbf00263993},
    year = {1980},
    month = {feb},
    publisher = {Springer Science and Business Media {LLC}},
    volume = {13},
    number = {2},
    pages = {189--197},
    author = {Christophe Reutenauer},
    title = {An Ogden-like iteration lemma for rational power series},
    journal = {Acta Informatica}
}

@article{Reutenauer_1980, doi = {10.1007/bf00263993}, url = {https://doi.org/10.1007%2Fbf00263993}, year = {1980}, month = {feb}, publisher = {Springer Science and Business Media {LLC}}, volume = {13}, number = {2}, pages = {189--197}, author = {Christophe Reutenauer}, title = {An Ogden-like iteration lemma for rational power series}, journal = {Acta Informatica} }