%0 Journal Article %A H. Stetkaer %T Functional equations on abelian groups with involution. %J Aequationes mathematicae %D 1997 %P 144-172 %V 54 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1997__54_3_137700/ %F AM2_1997__54_3_137700