@article{CTGDC_1977__18_2_181_0,
     author = {Penon, Jacques},
     title = {Sur les quasi-topos},
     journal = {Cahiers de topologie et g\'eom\'etrie diff\'erentielle},
     pages = {181--218},
     publisher = {Dunod \'editeur, publi\'e avec le concours du CNRS},
     volume = {18},
     number = {2},
     year = {1977},
     mrnumber = {480693},
     zbl = {0401.18002},
     language = {fr},
     url = {http://www.numdam.org/item/CTGDC_1977__18_2_181_0/}
}