%0 Journal Article
%A F.S. KOEHL
%T Difference Properties for Banach-Valued Functions.
%J Mathematische Annalen
%D 1969
%P 288-296
%V 181
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1969__181_161839/
%F MAN_1969__181_161839