TY  - JOUR
AU  - Dlab, Vlastimil
TI  - On a Class of Perfect Rings
JO  - Canadian journal of mathematics
PY  - 1970
SP  - 822
EP  - 826
VL  - 22
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1970-092-1/
DO  - 10.4153/CJM-1970-092-1
ID  - 10_4153_CJM_1970_092_1
ER  -