%0 Journal Article
%A Ralph Berr
%T Sums of mixed powers in fields and orderings of prescribed level.
%J Mathematische Zeitschrift
%D 1992
%P 513-528
%V 210
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZ_1992__210_1_174416/
%F MZ_1992__210_1_174416