@incollection{AST_1977__41-42__251_0,
     author = {Paysant-Le Roux, Roger},
     title = {Transformation par une fonction homographique d'une fraction continue p\'eriodique},
     booktitle = {Journ\'ees arithm\'etiques de Caen},
     series = {Ast\'erisque},
     pages = {251--253},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {41-42},
     year = {1977},
     zbl = {0343.10006},
     language = {fr},
     url = {http://archive.numdam.org/item/AST_1977__41-42__251_0/}
}