TY  - JOUR
AU  - Sheehan, J.
TI  - On Pólya's Theorem
JO  - Canadian journal of mathematics
PY  - 1967
SP  - 792
EP  - 799
VL  - 19
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1967-073-x/
DO  - 10.4153/CJM-1967-073-x
ID  - 10_4153_CJM_1967_073_x
ER  -