TY  - JOUR
AU  - Abbott, H. L.
AU  - Gardner, B.
TI  - An Extremal Problem in Number Theory
JO  - Canadian mathematical bulletin
PY  - 1967
SP  - 173
EP  - 177
VL  - 10
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1967-015-8/
DO  - 10.4153/CMB-1967-015-8
ID  - 10_4153_CMB_1967_015_8
ER  -