%0 Journal Article
%A Raymond W. Freese
%T A 2-metric Characterization of the Euclidean Plane.
%J Mathematische Annalen
%D 1973
%P 285-294
%V 206
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1973__206_162522/
%F MAN_1973__206_162522