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, 65
Edmond W. H. Lee, “Finite Basis Problem for Semigroups of Order Five or Less: Generalization and Revisitation”, Stud Logica, 101, № 1, 2013, 95
WEN TING ZHANG, JIAN RONG LI, YAN FENG LUO, “ON THE VARIETY GENERATED BY THE MONOID OF TRIANGULAR 2×2 MATRICES OVER A TWO-ELEMENT FIELD”, Bull. Aust. Math. Soc., 86, № 1, 2012, 64
Charles C. Edmunds, Edmond W. H. Lee, Ken W. K. Lee, “Small Semigroups Generating Varieties with Continuum Many Subvarieties”, Order, 27, № 1, 2010, 83
PETER R. JONES, “THE SEMIGROUPS B2 AND B0 ARE INHERENTLY NONFINITELY BASED, AS RESTRICTION SEMIGROUPS”, Int. J. Algebra Comput., 23, № 06, 2013, 1289
EDMOND W. H. LEE, MIKHAIL V. VOLKOV, “LIMIT VARIETIES GENERATED BY COMPLETELY 0-SIMPLE SEMIGROUPS”, Int. J. Algebra Comput., 21, № 01n02, 2011, 257
Edmond Lee, “Varieties generated by 2-testable monoids”, Studia Scientiarum Mathematicarum Hungarica, 49, № 3, 2012, 366
EDMOND W. H. LEE, “COMBINATORIAL REES–SUSHKEVICH VARIETIES THAT ARE CROSS, FINITELY GENERATED, OR SMALL”, Bull. Aust. Math. Soc., 81, № 1, 2010, 64
Shoufeng Wang, “A Munn type representation for DRC-restriction semigroups”, Period Math Hung, 88, № 1, 2024, 148