@article{Lee_2002,
    doi = {10.1145/505241.505242},
    url = {https://doi.org/10.1145%2F505241.505242},
    year = {2002},
    month = {jan},
    publisher = {Association for Computing Machinery ({ACM})},
    volume = {49},
    number = {1},
    pages = {1--15},
    author = {Lillian Lee},
    title = {Fast context-free grammar parsing requires fast boolean matrix multiplication},
    journal = {Journal of the {ACM}}
}

@article{Lee_2002, doi = {10.1145/505241.505242}, url = {https://doi.org/10.1145%2F505241.505242}, year = {2002}, month = {jan}, publisher = {Association for Computing Machinery ({ACM})}, volume = {49}, number = {1}, pages = {1--15}, author = {Lillian Lee}, title = {Fast context-free grammar parsing requires fast boolean matrix multiplication}, journal = {Journal of the {ACM}} }