%0 Journal Article %A Zbigniew Gajda %T On functional equations associated with characters of unitary representations of groups. %J Aequationes mathematicae %D 1992 %P 109-121 %V 44 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1992__44_1_137484/ %F AM2_1992__44_1_137484