@article{Danos_1999,
    doi = {10.1016/s0304-3975(99)00049-3},
    url = {https://doi.org/10.1016%2Fs0304-3975%2899%2900049-3},
    year = {1999},
    month = {sep},
    publisher = {Elsevier {BV}},
    volume = {227},
    number = {1-2},
    pages = {79--97},
    author = {Vincent Danos and Laurent Regnier},
    title = {Reversible, irreversible and optimal {$\lambda$}-machines},
    journal = {Theoretical Computer Science}
}

@article{Danos_1999, doi = {10.1016/s0304-3975(99)00049-3}, url = {https://doi.org/10.1016%2Fs0304-3975%2899%2900049-3}, year = {1999}, month = {sep}, publisher = {Elsevier {BV}}, volume = {227}, number = {1-2}, pages = {79--97}, author = {Vincent Danos and Laurent Regnier}, title = {Reversible, irreversible and optimal {$\lambda$}-machines}, journal = {Theoretical Computer Science} }