- Edmond W. H. Lee, Advances in the Theory of Varieties of Semigroups, 2023, 113
![https://doi.org/10.1007/978-3-031-16497-2_5 crossref](/refsvg/svg/crossref.svg)
- OLGA SAPIR, “LEE MONOIDS ARE NONFINITELY BASED WHILE THE SETS OF THEIR ISOTERMS ARE FINITELY BASED”, Bull. Aust. Math. Soc., 97, no. 3, 2018, 422
![https://doi.org/10.1017/S0004972718000023 crossref](/refsvg/svg/crossref.svg)
- O.B. Sapir, M.V. Volkov, “Catalan monoids inherently nonfinitely based relative to finite R-trivial semigroups”, Journal of Algebra, 633, 2023, 138
![https://doi.org/10.1016/j.jalgebra.2023.06.014 crossref](/refsvg/svg/crossref.svg)
- Edmond W. H. Lee, “Variety Membership Problem for Two Classes of Non-Finitely Based Semigroups”, Wuhan Univ. J. Nat. Sci., 23, no. 4, 2018, 323
![https://doi.org/10.1007/s11859-018-1329-7 crossref](/refsvg/svg/crossref.svg)
- Edmond W. H. Lee, John Rhodes, Benjamin Steinberg, “Join irreducible semigroups”, Int. J. Algebra Comput., 29, no. 07, 2019, 1249
![https://doi.org/10.1142/S0218196719500498 crossref](/refsvg/svg/crossref.svg)
- Olga B. Sapir, “Limit varieties of J-trivial monoids”, Semigroup Forum, 103, no. 1, 2021, 236
![https://doi.org/10.1007/s00233-021-10183-0 crossref](/refsvg/svg/crossref.svg)
- Edmond W. H. Lee, “Intervals of varieties of involution semigroups with contrasting reduct intervals”, Boll Unione Mat Ital, 15, no. 4, 2022, 527
![https://doi.org/10.1007/s40574-022-00317-9 crossref](/refsvg/svg/crossref.svg)
- Edmond W. H. Lee, Advances in the Theory of Varieties of Semigroups, 2023, 65
![https://doi.org/10.1007/978-3-031-16497-2_3 crossref](/refsvg/svg/crossref.svg)
- Inna A. Mikhailova, Olga B. Sapir, “Lee monoid
$L_4^1$
L
4
1
is non-finitely based”, Algebra Univers., 79, no. 3, 2018, 56 ![https://doi.org/10.1007/s00012-018-0541-9 crossref](/refsvg/svg/crossref.svg)
- Edmond W H Lee, “Varieties of involution monoids with extreme properties”, The Quarterly Journal of Mathematics, 70, no. 4, 2019, 1157
![https://doi.org/10.1093/qmath/haz003 crossref](/refsvg/svg/crossref.svg)