TY  - JOUR
AU  - Penry, M. D.
TI  - Composition Theorems on Dirichlet Series
JO  - Canadian mathematical bulletin
PY  - 1963
SP  - 397
EP  - 403
VL  - 6
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1963-034-1/
DO  - 10.4153/CMB-1963-034-1
ID  - 10_4153_CMB_1963_034_1
ER  -