@incollection{Statman_1997,
    doi = {10.1007/3-540-63172-0_55},
    url = {https://doi.org/10.1007%2F3-540-63172-0_55},
    year = {1997},
    publisher = {Springer Berlin Heidelberg},
    pages = {446--459},
    author = {Rick Statman},
    title = {On Cartesian monoids},
    booktitle = {Computer Science Logic}
}

@incollection{Statman_1997, doi = {10.1007/3-540-63172-0_55}, url = {https://doi.org/10.1007%2F3-540-63172-0_55}, year = {1997}, publisher = {Springer Berlin Heidelberg}, pages = {446--459}, author = {Rick Statman}, title = {On Cartesian monoids}, booktitle = {Computer Science Logic} }