@article{Baldan_2001,
    doi = {10.1006/inco.2001.3060},
    url = {https://doi.org/10.1006%2Finco.2001.3060},
    year = {2001},
    month = {nov},
    publisher = {Elsevier {BV}},
    volume = {171},
    number = {1},
    pages = {1--49},
    author = {Paolo Baldan and Andrea Corradini and Ugo Montanari},
    title = {Contextual Petri Nets, Asymmetric Event Structures, and Processes},
    journal = {Information and Computation}
}

@article{Baldan_2001, doi = {10.1006/inco.2001.3060}, url = {https://doi.org/10.1006%2Finco.2001.3060}, year = {2001}, month = {nov}, publisher = {Elsevier {BV}}, volume = {171}, number = {1}, pages = {1--49}, author = {Paolo Baldan and Andrea Corradini and Ugo Montanari}, title = {Contextual Petri Nets, Asymmetric Event Structures, and Processes}, journal = {Information and Computation} }