%0 Journal Article
%A A. Grytczuk
%A F. Luca
%A M. Wójtowicz
%T On a conjecture of Mąkowski and Schinzel concerning the composition of the arithmetic functions σ and ϕ
%J Colloquium Mathematicum
%D 2000
%P 31-36
%V 86
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/cm-86-1-31-36/
%R 10.4064/cm-86-1-31-36
%G fr
%F 10_4064_cm_86_1_31_36