TY  - JOUR
AU  - Broughan, Kevin A.
AU  - Zhou, Qizhi
TI  - On the ratio of the sum of divisors and Euler's totient function. II.
JO  - Journal of integer sequences
PY  - 2014
VL  - 17
IS  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JIS_2014__17_9_a2/
LA  - en
ID  - JIS_2014__17_9_a2
ER  -