%0 Journal Article %A Gy. Szabó %T A characterization of generalized inner product spaces (?-orthogonally additive mappings, III). %J Aequationes mathematicae %D 1991 %P 225-238 %V 42 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1991__42_3_137432/ %F AM2_1991__42_3_137432