%0 Journal Article %A Florian Luca %A Min Sha %A Igor E. Shparlinski %T On two functions arising in the study of the Euler and Carmichael quotients %J Colloquium Mathematicum %D 2017 %P 179-192 %V 149 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm6910-3-2017/ %R 10.4064/cm6910-3-2017 %G en %F 10_4064_cm6910_3_2017