- Edmond W. H. Lee, John Rhodes, Benjamin Steinberg, “Join irreducible semigroups”, Int. J. Algebra Comput., 29, no. 07, 2019,
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- Edmond W. H. Lee, “Equational theories of unstable involution semigroups”, ERA-MS, 24, 2017,
10 - Edmond W. H. Lee, “On Certain Cross Varieties of Aperiodic Monoids with Commuting Idempotents”, Results. Math., 66, no. 3-4, 2014,
491