TY  - JOUR
AU  - Petrich, Mario
TI  - Certain Varieties and Quasivarieties of Completely Regular Semigroups
JO  - Canadian journal of mathematics
PY  - 1977
SP  - 1171
EP  - 1197
VL  - 29
IS  - 6
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1977-118-7/
DO  - 10.4153/CJM-1977-118-7
ID  - 10_4153_CJM_1977_118_7
ER  -