TY  - JOUR
AU  - Petrich, Mario
TI  - Congruences on Completely Regular Semigroups
JO  - Canadian journal of mathematics
PY  - 1989
SP  - 439
EP  - 461
VL  - 41
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1989-020-6/
DO  - 10.4153/CJM-1989-020-6
ID  - 10_4153_CJM_1989_020_6
ER  -