%0 Journal Article %A P. Volkmann %A K. Baron %A A. Simon %T On functions having Cauchy differences in some prescribed sets. %J Aequationes mathematicae %D 1996 %P 254-259 %V 52 %N 1-2 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1996__52_1-2_137669/ %F AM2_1996__52_1-2_137669