%0 Journal Article
%A P. Erdös
%T Some remarks on the iterates of the φ and σ functions
%J Colloquium Mathematicum
%D 1967
%P 195-202
%V 17
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/cm-17-2-195-202/
%R 10.4064/cm-17-2-195-202
%G en
%F 10_4064_cm_17_2_195_202