TY  - JOUR
AU  - Alzer, Horst
AU  - Kwong, Man Kam
TI  - Inequalities for the arithmetical functions of Euler and Dedekind
JO  - Czechoslovak Mathematical Journal
PY  - 2020
SP  - 781
EP  - 791
VL  - 70
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2020.0530-18/
DO  - 10.21136/CMJ.2020.0530-18
LA  - en
ID  - 10_21136_CMJ_2020_0530_18
ER  -