@article{CTGDC_1979__20_3_231_0,
     author = {Dubuc, Eduardo J.},
     title = {Sur les mod\`eles de la g\'eom\'etrie diff\'erentielle synth\'etique},
     journal = {Cahiers de topologie et g\'eom\'etrie diff\'erentielle},
     pages = {231--279},
     publisher = {Dunod \'editeur, publi\'e avec le concours du CNRS},
     volume = {20},
     number = {3},
     year = {1979},
     mrnumber = {557083},
     zbl = {0473.18008},
     language = {fr},
     url = {http://archive.numdam.org/item/CTGDC_1979__20_3_231_0/}
}