%0 Journal Article %A Erik A. Lippa %T Correction and Supplement: An Elementary Approach to Hecke Operators. %J Mathematische Annalen %D 1975 %P 191-192 %V 218 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1975__218_162792/ %F MAN_1975__218_162792