The Lattice of Varieties of Completely Regular Semigroups

J. A. Gerhard and M. Petrich, All varieties of regular orthogroups, Semigroup Forum 31(1985), 311–351.

J.A. Gerhard and M. Petrich, Varieties of bands revisited, Proc. London Math. Soc. (3) 58 (1989), 323-350.

P.R. Jones, On the lattice of varieties of completely regular semigroups, J. Austral. Math. Soc. 35(1983), 227–235.

F.J. Pastijn, The lattice of completely regular semigroup varieties, J. Austral. Math. Soc. 49(1990), 24–42.

M. Petrich, Certain varieties and quasivarieties of completely regular semigroups, Canad. J. Math. 29(1997), 1171–1197.

M. Petrich, Canonical varieties of completely regular semigroups, J. Austral. Math. Soc, to appear.

M. Petrich and N. R. Reilly, Operators related to E-disjunctive and fundamental completely regular semigroups, J. Algebra 134(1990), 1–27.

M. Petrich and N. R. Reilly, Completely regular semigroups, Vol. I, Wiley, New York, 1999.

M. Petrich and N. R. Reilly, Completely regular semigroups, Vol. II, book manuscript.

L. Polák, On varieties of completely regular semigroups I, Semigroup Forum 32 (1985), 97–123.

L. Polák, On varieties of completely regular semigroups II, Semigroup Forum 36(1987) 253–284

L. Polák, On varieties of completely regular semigroups III, Semigroup Forum 37(1988), 1–30.

V.V. Rasin, Varieties of orthodox Clifford semigroups, Izv. Vysš. Učebn. Zav. Matem. 11(1982), 82–85 (Russian).