References
Birjukov, A.L.,Varieties of idempotent semigroups, Algebra and Logic, 9 (1970), 255–273 (in Russian).
Bolbot, A.D.,Thefinitenessofabaseofidentitiesforfour-elementsemigroups, Trans. of XI All Union Algebraic Colloqium, Kishinjov, 1971, 185 (in Russian).
Bolbot, A.D.,The finiteness of a base of identities for four-element semigroups, VINITI, Moscow, No. 1738–78 Dep. (1978) (in Russian).
Edmunds, C.C.,On certain finitely based varieties of semigroups, Semigroup Forum 15 (1977), 21–39.
Forsythe, G.E.,SWAC computes 126 distinct semigroups of order 4, Proc. Amer. Math. Soc. 6 (1955), 443–447.
Perkins, P.,Bases for equational theories of semigroups, J. Algebra 11 (1969), 298–324.
Petrich, M.,Introductiontosemigroups, Merrill Publishing Company, 1973.
Sverdlovskayatetrad (unsolved problems of the theory of semigroups), Problem 63, Sverdlovsk, 1969 (in Russian).
Tishchenko, A.V.,Thefinitenessofabaseofidentitiesforfive-elementmonoids. Trans. of II All Union Symp. on the Theory of Semigroups, Sverdlovsk, 1978, 93 (in Russian).
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Communicated by L. N. Shevrin
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Tishchenko, A.V. The finiteness of a base of identities for five-element monoids. Semigroup Forum 20, 171–186 (1980). https://doi.org/10.1007/BF02572679
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DOI: https://doi.org/10.1007/BF02572679