@inproceedings{Hu_2020,
    doi = {10.1145/3385412.3385979},
    url = {https://doi.org/10.1145%2F3385412.3385979},
    year = {2020},
    month = {jun},
    publisher = {{ACM}},
    author = {Qinheping Hu and John Cyphert and Loris D{\textquotesingle}Antoni and Thomas Reps},
    title = {Exact and approximate methods for proving unrealizability of syntax-guided synthesis problems},
    booktitle = {Proceedings of the 41st {ACM} {SIGPLAN} Conference on Programming Language Design and Implementation}
}

@inproceedings{Hu_2020, doi = {10.1145/3385412.3385979}, url = {https://doi.org/10.1145%2F3385412.3385979}, year = {2020}, month = {jun}, publisher = {{ACM}}, author = {Qinheping Hu and John Cyphert and Loris D{\textquotesingle}Antoni and Thomas Reps}, title = {Exact and approximate methods for proving unrealizability of syntax-guided synthesis problems}, booktitle = {Proceedings of the 41st {ACM} {SIGPLAN} Conference on Programming Language Design and Implementation} }