%0 Journal Article %A Karl-Heinz Indlekofer %T On Sets Characterizing Additive Arithmetical Functions. %J Mathematische Zeitschrift %D 1976 %P 285-290 %V 146 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1976__146_172313/ %F MZ_1976__146_172313