@article{CTGDC_1980__21_2_111_0,
     author = {Street, Ross},
     title = {Fibrations in bicategories},
     journal = {Cahiers de Topologie et G\'eom\'etrie Diff\'erentielle Cat\'egoriques},
     pages = {111--160},
     publisher = {Dunod \'editeur, publi\'e avec le concours du CNRS},
     volume = {21},
     number = {2},
     year = {1980},
     mrnumber = {574662},
     zbl = {0436.18005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CTGDC_1980__21_2_111_0/}
}