@incollection{AST_1980__74__47_0,
     author = {Guivarc'h, Yves},
     title = {Sur la loi des grands nombres et le rayon spectral d'une marche al\'eatoire},
     booktitle = {Journ\'ees sur les marches al\'eatoires},
     series = {Ast\'erisque},
     pages = {47--98},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {74},
     year = {1980},
     mrnumber = {588157},
     zbl = {0448.60007},
     language = {fr},
     url = {http://www.numdam.org/item/AST_1980__74__47_0/}
}