TY - JOUR AU - Florian Luca AU - Min Sha AU - Igor E. Shparlinski TI - On two functions arising in the study of the Euler and Carmichael quotients JO - Colloquium Mathematicum PY - 2017 SP - 179 EP - 192 VL - 149 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm6910-3-2017/ DO - 10.4064/cm6910-3-2017 LA - en ID - 10_4064_cm6910_3_2017 ER -