TY  - JOUR
AU  - Riddell, J.
TI  - Sets of integers containing no n terms in geometric progression
JO  - Glasgow mathematical journal
PY  - 1969
SP  - 137
EP  - 146
VL  - 10
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S0017089500000690/
DO  - 10.1017/S0017089500000690
ID  - 10_1017_S0017089500000690
ER  -