@article{Cockett_2002,
    doi = {10.1016/s0304-3975(00)00382-0},
    url = {https://doi.org/10.1016%2Fs0304-3975%2800%2900382-0},
    year = {2002},
    month = {jan},
    publisher = {Elsevier {BV}},
    volume = {270},
    number = {1-2},
    pages = {223--259},
    author = {J.R.B. Cockett and Stephen Lack},
    title = {Restriction categories I: categories of partial maps},
    journal = {Theoretical Computer Science}
}

@article{Cockett_2002, doi = {10.1016/s0304-3975(00)00382-0}, url = {https://doi.org/10.1016%2Fs0304-3975%2800%2900382-0}, year = {2002}, month = {jan}, publisher = {Elsevier {BV}}, volume = {270}, number = {1-2}, pages = {223--259}, author = {J.R.B. Cockett and Stephen Lack}, title = {Restriction categories I: categories of partial maps}, journal = {Theoretical Computer Science} }