%0 Journal Article %A H. Maier %T On the third iterates of the φ- and σ-functions %J Colloquium Mathematicum %D 1984 %P 123-130 %V 49 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-49-1-123-130/ %R 10.4064/cm-49-1-123-130 %G en %F 10_4064_cm_49_1_123_130