@incollection{AST_1977__41-42__111_0,
     author = {Serre, Jean-Pierre},
     title = {Majorations de sommes exponentielles},
     booktitle = {Journ\'ees arithm\'etiques de Caen},
     series = {Ast\'erisque},
     pages = {111--126},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {41-42},
     year = {1977},
     mrnumber = {447142},
     zbl = {0406.14014},
     language = {fr},
     url = {http://archive.numdam.org/item/AST_1977__41-42__111_0/}
}