@article{Day_1997,
    doi = {10.1006/aima.1997.1649},
    url = {https://doi.org/10.1006%2Faima.1997.1649},
    year = {1997},
    month = {jul},
    publisher = {Elsevier {BV}},
    volume = {129},
    number = {1},
    pages = {99--157},
    author = {Brian Day and Ross Street},
    title = {Monoidal Bicategories and Hopf Algebroids},
    journal = {Advances in Mathematics}
}

@article{Day_1997, doi = {10.1006/aima.1997.1649}, url = {https://doi.org/10.1006%2Faima.1997.1649}, year = {1997}, month = {jul}, publisher = {Elsevier {BV}}, volume = {129}, number = {1}, pages = {99--157}, author = {Brian Day and Ross Street}, title = {Monoidal Bicategories and Hopf Algebroids}, journal = {Advances in Mathematics} }