@incollection{AST_1975__24-25__69_0,
     author = {Schinzel, Andrzej},
     title = {Les extensions pures et les r\'esidus des puissances},
     booktitle = {Journ\'ees arithm\'etiques de Bordeaux},
     series = {Ast\'erisque},
     pages = {69--74},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {24-25},
     year = {1975},
     mrnumber = {379433},
     zbl = {0312.12011},
     language = {fr},
     url = {http://www.numdam.org/item/AST_1975__24-25__69_0/}
}