@incollection{AST_1983__109-110__225_0,
     author = {Callot, Jean-Louis},
     title = {Groupes vus au macroscope},
     booktitle = {IIIe rencontre de g\'eom\'etrie du Schnepfenried Volume 2 - 10-15 mai 1982},
     series = {Ast\'erisque},
     pages = {225--234},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {109-110},
     year = {1983},
     mrnumber = {753150},
     zbl = {0529.20024},
     language = {fr},
     url = {http://www.numdam.org/item/AST_1983__109-110__225_0/}
}