@article{Birget_2009,
    doi = {10.1016/j.jpaa.2008.06.012},
    url = {https://doi.org/10.1016%2Fj.jpaa.2008.06.012},
    year = {2009},
    month = {feb},
    publisher = {Elsevier {BV}},
    volume = {213},
    number = {2},
    pages = {264--278},
    author = {Jean-Camille Birget},
    title = {Monoid generalizations of the Richard Thompson groups},
    journal = {Journal of Pure and Applied Algebra}
}

@article{Birget_2009, doi = {10.1016/j.jpaa.2008.06.012}, url = {https://doi.org/10.1016%2Fj.jpaa.2008.06.012}, year = {2009}, month = {feb}, publisher = {Elsevier {BV}}, volume = {213}, number = {2}, pages = {264--278}, author = {Jean-Camille Birget}, title = {Monoid generalizations of the Richard Thompson groups}, journal = {Journal of Pure and Applied Algebra} }