%0 Journal Article %A Jochem Zowe %T Subdifferentiability of Convex Functions with Values in an Ordered Vector Space. %J Mathematica Scandinavica %D 1974 %P 69-83 %V 34 %I mathdoc %U http://geodesic.mathdoc.fr/item/MS2_1974__34_166346/ %F MS2_1974__34_166346