%0 Journal Article %A Halina Swiatak %T On a Class of Functional Equations with Several Unknown Functions. (Short Communication). %J Aequationes mathematicae %D 1974 %P 117-117 %V 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1974__11_136444/ %F AM2_1974__11_136444