TY  - JOUR
AU  - Harman, Glyn
TI  - On sparsely totient numbers
JO  - Glasgow mathematical journal
PY  - 1991
SP  - 350
EP  - 358
VL  - 33
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S0017089500008417/
DO  - 10.1017/S0017089500008417
ID  - 10_1017_S0017089500008417
ER  -