@article{Johnson_1986,
    doi = {10.1016/0304-3975(86)90132-5},
    url = {https://doi.org/10.1016%2F0304-3975%2886%2990132-5},
    year = {1986},
    publisher = {Elsevier {BV}},
    volume = {47},
    pages = {39--60},
    author = {J.Howard Johnson},
    title = {Rational equivalence relations},
    journal = {Theoretical Computer Science}
}

@article{Johnson_1986, doi = {10.1016/0304-3975(86)90132-5}, url = {https://doi.org/10.1016%2F0304-3975%2886%2990132-5}, year = {1986}, publisher = {Elsevier {BV}}, volume = {47}, pages = {39--60}, author = {J.Howard Johnson}, title = {Rational equivalence relations}, journal = {Theoretical Computer Science} }