@article{CTGDC_1971__12_2_147_0,
     author = {Lair, Christian},
     title = {Foncteurs d'omission de structures alg\'ebriques},
     journal = {Cahiers de topologie et g\'eom\'etrie diff\'erentielle},
     pages = {147--186},
     publisher = {Dunod \'editeur, publi\'e avec le concours du CNRS},
     volume = {12},
     number = {2},
     year = {1971},
     mrnumber = {327864},
     zbl = {0226.18004},
     language = {fr},
     url = {http://www.numdam.org/item/CTGDC_1971__12_2_147_0/}
}