%0 Journal Article %A K Chandrasekharan %A Raghavan Narasimhan %T Hecke's functional equation and the average order of arithmetical functions %J Acta Arithmetica %D 1960 %P 487-503 %V 6 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-6-4-487-503/ %R 10.4064/aa-6-4-487-503 %G en %F 10_4064_aa_6_4_487_503