@article{Downey_1995,
    doi = {10.1016/0304-3975(94)00097-3},
    url = {https://doi.org/10.1016%2F0304-3975%2894%2900097-3},
    year = {1995},
    month = {apr},
    publisher = {Elsevier {BV}},
    volume = {141},
    number = {1-2},
    pages = {109--131},
    author = {Rod G. Downey and Michael R. Fellows},
    title = {Fixed-parameter tractability and completeness {II}: On completeness for W[1]},
    journal = {Theoretical Computer Science}
}

@article{Downey_1995, doi = {10.1016/0304-3975(94)00097-3}, url = {https://doi.org/10.1016%2F0304-3975%2894%2900097-3}, year = {1995}, month = {apr}, publisher = {Elsevier {BV}}, volume = {141}, number = {1-2}, pages = {109--131}, author = {Rod G. Downey and Michael R. Fellows}, title = {Fixed-parameter tractability and completeness {II}: On completeness for W[1]}, journal = {Theoretical Computer Science} }