@article{Bossut_1995,
    doi = {10.1006/inco.1995.1043},
    url = {https://doi.org/10.1006%2Finco.1995.1043},
    year = {1995},
    month = {mar},
    publisher = {Elsevier {BV}},
    volume = {117},
    number = {2},
    pages = {251--265},
    author = {F. Bossut and M. Dauchet and B. Warin},
    title = {A Kleene Theorem for a Class of Planar Acyclic Graphs},
    journal = {Information and Computation}
}

@article{Bossut_1995, doi = {10.1006/inco.1995.1043}, url = {https://doi.org/10.1006%2Finco.1995.1043}, year = {1995}, month = {mar}, publisher = {Elsevier {BV}}, volume = {117}, number = {2}, pages = {251--265}, author = {F. Bossut and M. Dauchet and B. Warin}, title = {A Kleene Theorem for a Class of Planar Acyclic Graphs}, journal = {Information and Computation} }