@book{AST_1973__4_,
     author = {Collectif},
     title = {S\'eminaire {KGB} sur les marches al\'eatoires},
     series = {Ast\'erisque},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {4},
     year = {1973},
     language = {mul},
     url = {http://archive.numdam.org/item/AST_1973__4_/}
}