TY  - JOUR
AU  - Petrich, Mario
TI  - A semilattice of varieties of completely regular semigroups
JO  - Mathematica Bohemica
PY  - 2020
SP  - 1
EP  - 14
VL  - 145
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/MB.2018.0112-17/
DO  - 10.21136/MB.2018.0112-17
LA  - en
ID  - 10_21136_MB_2018_0112_17
ER  -