%0 Journal Article %A László Losonczi %T Paul Erdös on functional equations: Contributions and impact. %J Aequationes mathematicae %D 1997 %P 221-233 %V 54 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1997__54_3_137704/ %F AM2_1997__54_3_137704