1. Bourbaki N., Theories spectrales, Hermann, Paris, 1967.
2. Chekanu G.P., Semisimple locally finite algebras, Studies in the theory of rings, algebras and modules, Mat. Issled. No. 76 (1984), 172–179.
3. Clifford A.H. and G.B. Preston, The algebraic theory of semigroups, vol. 1, Providence, 1961.
4. Domanov O.I., On identities of semigroup rings of completely 0-simple semigroups, Mat. Zametki 18 (1975), 203–212.
5. Domanov O.I., Identities of semigroup rings of 0-simple semigroups, Sib. Math. J. 18 (1976), 1406–1407.