@incollection{AST_1987__147-148__291_0,
     author = {Hellegouarch, Y. and Paysant-Le Roux, R.},
     title = {Invariants arithm\'etiques des corps poss\'edant une formule du produit; applications},
     booktitle = {Journ\'ees arithm\'etiques de Besan\c{c}on},
     series = {Ast\'erisque},
     pages = {291--300},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {147-148},
     year = {1987},
     zbl = {0613.12012},
     language = {fr},
     url = {http://archive.numdam.org/item/AST_1987__147-148__291_0/}
}