L. N. Shevrin, B. M. Vernikov, M. V. Volkov, “Lattices of semigroup varieties”, Russ Math., 53, № 3, 2009, 1
Edmond W. H. Lee, Advances in the Theory of Varieties of Semigroups, 2023, 1
EDMOND W. H. LEE, “COMBINATORIAL REES–SUSHKEVICH VARIETIES ARE FINITELY BASED”, Int. J. Algebra Comput., 18, № 05, 2008, 957
EDMOND W. H. LEE, “COMBINATORIAL REES–SUSHKEVICH VARIETIES THAT ARE CROSS, FINITELY GENERATED, OR SMALL”, Bull. Aust. Math. Soc., 81, № 1, 2010, 64
Edmond W. H. Lee, “Finite Basis Problem for Semigroups of Order Five or Less: Generalization and Revisitation”, Stud Logica, 101, № 1, 2013, 95