Edmond W. H. Lee, John Rhodes, Benjamin Steinberg, “Join irreducible semigroups”, Int. J. Algebra Comput., 29, no. 07, 2019, 1249
Wen Ting Zhang, Yan Feng Luo, “On Varieties Generated by Minimal Complex Semigroups”, Order, 25, no. 3, 2008, 243
Edmond W. H. Lee, “Finite basis problem for 2-testable monoids”, centr.eur.j.math., 9, no. 1, 2011, 1
Edmond W. H. Lee, Advances in the Theory of Varieties of Semigroups, 2023, 1
Edmond W. H. Lee, “Hereditarily finitely based monoids of extensive transformations”, Algebra Univers., 61, no. 1, 2009, 31
Edmond W. H. Lee, Wen Ting Zhang, “Finite basis problem for semigroups of order six”, LMS J. Comput. Math., 18, no. 1, 2015, 1