%0 Journal Article %A Otte Hustad %T Upper Semi-Continuity of Convex Functions and Openness of Affine Maps. %J Mathematica Scandinavica %D 1992 %P 43-77 %V 70 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MS2_1992__70_1_167187/ %F MS2_1992__70_1_167187