%0 Journal Article %A Penntti Haukkanen %T A generalization of the Subbarao identity. %J Aequationes mathematicae %D 1988 %P 76-81 %V 35 %N 2-3 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1988__35_2-3_137257/ %F AM2_1988__35_2-3_137257