@incollection{AST_1977__41-42__199_0,
     author = {Eichler, Martin},
     title = {Repr\'esentation moyenne de nombres par des formes quadratiques quaternaires},
     booktitle = {Journ\'ees arithm\'etiques de Caen},
     series = {Ast\'erisque},
     pages = {199--202},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {41-42},
     year = {1977},
     mrnumber = {444565},
     zbl = {0342.10012},
     language = {fr},
     url = {http://www.numdam.org/item/AST_1977__41-42__199_0/}
}