@incollection{AST_1999__257__135_0,
     author = {Breen, Lawrence},
     title = {Appendice {B.} {Ensembles} crois\'es et alg\`ebre simpliciale},
     booktitle = {Cohomologie, stabilisation et changement de base},
     series = {Ast\'erisque},
     pages = {135--161},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {257},
     year = {1999},
     language = {fr},
     url = {http://archive.numdam.org/item/AST_1999__257__135_0/}
}