@article{CTGDC_1979__20_1_59_0,
     author = {Ehresmann, Andr\'ee and Ehresmann, Charles},
     title = {Multiple functors. {IV.} {Monoidal} closed structures on $Cat_n$},
     journal = {Cahiers de topologie et g\'eom\'etrie diff\'erentielle},
     pages = {59--104},
     publisher = {Dunod \'editeur, publi\'e avec le concours du CNRS},
     volume = {20},
     number = {1},
     year = {1979},
     mrnumber = {544529},
     zbl = {0415.18007},
     language = {en},
     url = {http://www.numdam.org/item/CTGDC_1979__20_1_59_0/}
}