%0 Journal Article %A Karol Baron %A Witold Jarczyk %T On approximate solutions of functional equations of countable order. %J Aequationes mathematicae %D 1985 %P 22-34 %V 28 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1985__28_137036/ %F AM2_1985__28_137036