TY  - JOUR
AU  - A. Grytczuk
AU  - F. Luca
AU  - M. Wójtowicz
TI  - On a conjecture of Mąkowski and Schinzel concerning the composition of the arithmetic functions σ and ϕ
JO  - Colloquium Mathematicum
PY  - 2000
SP  - 31
EP  - 36
VL  - 86
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-86-1-31-36/
DO  - 10.4064/cm-86-1-31-36
LA  - fr
ID  - 10_4064_cm_86_1_31_36
ER  -