%0 Journal Article %A Michael Voit %T Positive Characters on Commutative Hypergroups and Some applications. %J Mathematische Zeitschrift %D 1988 %P 405-422 %V 198 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1988__198_3_173934/ %F MZ_1988__198_3_173934