%0 Journal Article
%A A. D. Tzouvaras
%T A non-Standard Characterization of the norm of free Ultrafilters
%J Ευκλείδης Γ

%D 1989
%P 81-85
%V 21
%I mathdoc
%U http://geodesic.mathdoc.fr/item/EUG_1989__21_a7/
%G gr
%F EUG_1989__21_a7