@inproceedings{Hastad_1986,
    doi = {10.1145/12130.12132},
    url = {https://doi.org/10.1145%2F12130.12132},
    year = {1986},
    publisher = {{ACM} Press},
    author = {J Hastad},
    title = {Almost optimal lower bounds for small depth circuits},
    booktitle = {Proceedings of the eighteenth annual {ACM} symposium on Theory of computing  - {STOC} {\textquotesingle}86}
}

@inproceedings{Hastad_1986, doi = {10.1145/12130.12132}, url = {https://doi.org/10.1145%2F12130.12132}, year = {1986}, publisher = {{ACM} Press}, author = {J Hastad}, title = {Almost optimal lower bounds for small depth circuits}, booktitle = {Proceedings of the eighteenth annual {ACM} symposium on Theory of computing - {STOC} {\textquotesingle}86} }