@article{DIA_1979__1__A3_0,
     author = {Foltz, Fran\c{c}ois},
     title = {L\'egitimit\'e des cat\'egories de pr\'efaisceaux},
     journal = {Diagrammes},
     note = {talk:3},
     pages = {F1--F5},
     publisher = {Universit\'e Paris 7, Unit\'e d'enseignement et de recherche de math\'ematiques},
     volume = {1},
     year = {1979},
     mrnumber = {684432},
     zbl = {0517.18008},
     language = {fr},
     url = {http://www.numdam.org/item/DIA_1979__1__A3_0/}
}