%0 Journal Article %A Emil Grosswald %T Arithmetical functions with periodic zeros %J Acta Arithmetica %D 1975 %P 1-21 %V 28 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-28-1-1-21/ %R 10.4064/aa-28-1-1-21 %G en %F 10_4064_aa_28_1_1_21