TY  - JOUR
AU  - Zhou, Yiqiang
TI  - Erratum: A Characterization of Left Perfect Rings
JO  - Canadian mathematical bulletin
PY  - 2002
SP  - 448
EP  - 448
VL  - 45
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-2002-047-7/
DO  - 10.4153/CMB-2002-047-7
ID  - 10_4153_CMB_2002_047_7
ER  -