@article{Kozen_2002,
    doi = {10.1006/inco.2001.2960},
    url = {https://doi.org/10.1006%2Finco.2001.2960},
    year = {2002},
    month = {dec},
    publisher = {Elsevier {BV}},
    volume = {179},
    number = {2},
    pages = {152--162},
    author = {Dexter Kozen},
    title = {On the Complexity of Reasoning in Kleene Algebra},
    journal = {Information and Computation}
}

@article{Kozen_2002, doi = {10.1006/inco.2001.2960}, url = {https://doi.org/10.1006%2Finco.2001.2960}, year = {2002}, month = {dec}, publisher = {Elsevier {BV}}, volume = {179}, number = {2}, pages = {152--162}, author = {Dexter Kozen}, title = {On the Complexity of Reasoning in Kleene Algebra}, journal = {Information and Computation} }