@article{Burger_2011,
    doi = {10.1145/1970398.1970399},
    url = {https://doi.org/10.1145%2F1970398.1970399},
    year = {2011},
    month = {jul},
    publisher = {Association for Computing Machinery ({ACM})},
    volume = {12},
    number = {4},
    pages = {1--39},
    author = {Lutz Stra{\ss} Burger and Alessio Guglielmi},
    title = {A system of interaction and structure {IV}},
    journal = {{ACM} Transactions on Computational Logic}
}

@article{Burger_2011, doi = {10.1145/1970398.1970399}, url = {https://doi.org/10.1145%2F1970398.1970399}, year = {2011}, month = {jul}, publisher = {Association for Computing Machinery ({ACM})}, volume = {12}, number = {4}, pages = {1--39}, author = {Lutz Stra{\ss} Burger and Alessio Guglielmi}, title = {A system of interaction and structure {IV}}, journal = {{ACM} Transactions on Computational Logic} }