@article{Jeavons_1998,
    doi = {10.1016/s0304-3975(97)00230-2},
    url = {https://doi.org/10.1016%2Fs0304-3975%2897%2900230-2},
    year = {1998},
    month = {jun},
    publisher = {Elsevier {BV}},
    volume = {200},
    number = {1-2},
    pages = {185--204},
    author = {Peter Jeavons},
    title = {On the algebraic structure of combinatorial problems},
    journal = {Theoretical Computer Science}
}

@article{Jeavons_1998, doi = {10.1016/s0304-3975(97)00230-2}, url = {https://doi.org/10.1016%2Fs0304-3975%2897%2900230-2}, year = {1998}, month = {jun}, publisher = {Elsevier {BV}}, volume = {200}, number = {1-2}, pages = {185--204}, author = {Peter Jeavons}, title = {On the algebraic structure of combinatorial problems}, journal = {Theoretical Computer Science} }