@article{Carboni_1987,
    doi = {10.1016/0022-4049(87)90121-6},
    url = {https://doi.org/10.1016%2F0022-4049%2887%2990121-6},
    year = {1987},
    month = {nov},
    publisher = {Elsevier {BV}},
    volume = {49},
    number = {1-2},
    pages = {11--32},
    author = {A. Carboni and R.F.C. Walters},
    title = {Cartesian bicategories I},
    journal = {Journal of Pure and Applied Algebra}
}

@article{Carboni_1987, doi = {10.1016/0022-4049(87)90121-6}, url = {https://doi.org/10.1016%2F0022-4049%2887%2990121-6}, year = {1987}, month = {nov}, publisher = {Elsevier {BV}}, volume = {49}, number = {1-2}, pages = {11--32}, author = {A. Carboni and R.F.C. Walters}, title = {Cartesian bicategories I}, journal = {Journal of Pure and Applied Algebra} }