TY  - JOUR
AU  - Brown, Leon
TI  - Invertible Elements in the Dirichlet Space
JO  - Canadian mathematical bulletin
PY  - 1990
SP  - 419
EP  - 422
VL  - 33
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1990-068-7/
DO  - 10.4153/CMB-1990-068-7
ID  - 10_4153_CMB_1990_068_7
ER  -