@article{P_rez_2014,
    doi = {10.1016/j.ic.2014.08.001},
    url = {https://doi.org/10.1016%2Fj.ic.2014.08.001},
    year = {2014},
    month = {dec},
    publisher = {Elsevier {BV}},
    volume = {239},
    pages = {254--302},
    author = {Jorge A. P{\'{e}}rez and Lu{\'{\i}}s Caires and Frank Pfenning and Bernardo Toninho},
    title = {Linear logical relations and observational equivalences for session-based concurrency},
    journal = {Information and Computation}
}

@article{P_rez_2014, doi = {10.1016/j.ic.2014.08.001}, url = {https://doi.org/10.1016%2Fj.ic.2014.08.001}, year = {2014}, month = {dec}, publisher = {Elsevier {BV}}, volume = {239}, pages = {254--302}, author = {Jorge A. P{\'{e}}rez and Lu{\'{\i}}s Caires and Frank Pfenning and Bernardo Toninho}, title = {Linear logical relations and observational equivalences for session-based concurrency}, journal = {Information and Computation} }