%0 Journal Article %A Imre Ruzsa %T General multiplicative functions %J Acta Arithmetica %D 1977 %P 313-347 %V 32 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-32-4-313-347/ %R 10.4064/aa-32-4-313-347 %G en %F 10_4064_aa_32_4_313_347