@incollection{AST_1977__41-42__165_0,
     author = {Berndt, Rolf},
     title = {Diff\'erentielles arithm\'etiquement enti\`eres des corps de fonctions modulaires},
     booktitle = {Journ\'ees arithm\'etiques de Caen},
     series = {Ast\'erisque},
     pages = {165--172},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {41-42},
     year = {1977},
     mrnumber = {466019},
     zbl = {0345.10010},
     language = {fr},
     url = {http://archive.numdam.org/item/AST_1977__41-42__165_0/}
}