@incollection{AST_1981__82-83__221_0,
     author = {Laumon, G.},
     title = {Majorations de sommes trigonom\'etriques (d'apres {P.} {Deligne} et {N.} {Katz)}},
     booktitle = {Caract\'eristique d'Euler-Poincar\'e - S\'eminaire E.N.S. 1978-1979},
     series = {Ast\'erisque},
     pages = {221--258},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {82-83},
     year = {1981},
     mrnumber = {629129},
     zbl = {0494.14010},
     language = {fr},
     url = {http://archive.numdam.org/item/AST_1981__82-83__221_0/}
}