@inproceedings{Castagna_2014,
    doi = {10.1145/2535838.2535840},
    url = {https://doi.org/10.1145%2F2535838.2535840},
    year = {2014},
    month = {jan},
    publisher = {{ACM}},
    author = {Giuseppe Castagna and Kim Nguyen and Zhiwu Xu and Hyeonseung Im and Sergueï Lenglet and Luca Padovani},
    title = {Polymorphic functions with set-theoretic types},
    booktitle = {Proceedings of the 41st {ACM} {SIGPLAN}-{SIGACT} Symposium on Principles of Programming Languages}
}

@inproceedings{Castagna_2014, doi = {10.1145/2535838.2535840}, url = {https://doi.org/10.1145%2F2535838.2535840}, year = {2014}, month = {jan}, publisher = {{ACM}}, author = {Giuseppe Castagna and Kim Nguyen and Zhiwu Xu and Hyeonseung Im and Sergueï Lenglet and Luca Padovani}, title = {Polymorphic functions with set-theoretic types}, booktitle = {Proceedings of the 41st {ACM} {SIGPLAN}-{SIGACT} Symposium on Principles of Programming Languages} }