@article{Bouyer_2006,
    doi = {10.1016/j.ipl.2006.01.012},
    url = {https://doi.org/10.1016%2Fj.ipl.2006.01.012},
    year = {2006},
    month = {jun},
    publisher = {Elsevier {BV}},
    volume = {98},
    number = {5},
    pages = {188--194},
    author = {Patricia Bouyer and Thomas Brihaye and Nicolas Markey},
    title = {Improved undecidability results on weighted timed automata},
    journal = {Information Processing Letters}
}

@article{Bouyer_2006, doi = {10.1016/j.ipl.2006.01.012}, url = {https://doi.org/10.1016%2Fj.ipl.2006.01.012}, year = {2006}, month = {jun}, publisher = {Elsevier {BV}}, volume = {98}, number = {5}, pages = {188--194}, author = {Patricia Bouyer and Thomas Brihaye and Nicolas Markey}, title = {Improved undecidability results on weighted timed automata}, journal = {Information Processing Letters} }