@article{Okhotin_2003,
    doi = {10.1016/s0020-0190(02)00511-2},
    url = {https://doi.org/10.1016%2Fs0020-0190%2802%2900511-2},
    year = {2003},
    month = {jun},
    publisher = {Elsevier {BV}},
    volume = {86},
    number = {5},
    pages = {247--253},
    author = {Alexander Okhotin},
    title = {The hardest linear conjunctive language},
    journal = {Information Processing Letters}
}

@article{Okhotin_2003, doi = {10.1016/s0020-0190(02)00511-2}, url = {https://doi.org/10.1016%2Fs0020-0190%2802%2900511-2}, year = {2003}, month = {jun}, publisher = {Elsevier {BV}}, volume = {86}, number = {5}, pages = {247--253}, author = {Alexander Okhotin}, title = {The hardest linear conjunctive language}, journal = {Information Processing Letters} }