%0 Journal Article %A Zbigniew Nowacki %T Monotonicity of multiplicative functions %J Colloquium Mathematicum %D 1979 %P 147-151 %V 41 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-41-1-147-151/ %R 10.4064/cm-41-1-147-151 %G en %F 10_4064_cm_41_1_147_151