@inproceedings{Castagna_2016,
    doi = {10.1145/2951913.2951928},
    url = {https://doi.org/10.1145%2F2951913.2951928},
    year = {2016},
    month = {sep},
    publisher = {{ACM}},
    author = {Giuseppe Castagna and Tommaso Petrucciani and Kim Nguy\~{\^e}n},
    title = {Set-theoretic types for polymorphic variants},
    booktitle = {Proceedings of the 21st {ACM} {SIGPLAN} International Conference on Functional Programming}
}

@inproceedings{Castagna_2016, doi = {10.1145/2951913.2951928}, url = {https://doi.org/10.1145%2F2951913.2951928}, year = {2016}, month = {sep}, publisher = {{ACM}}, author = {Giuseppe Castagna and Tommaso Petrucciani and Kim Nguy\~{\^e}n}, title = {Set-theoretic types for polymorphic variants}, booktitle = {Proceedings of the 21st {ACM} {SIGPLAN} International Conference on Functional Programming} }