References
Chacron, M. and G. Thierrin,σ-Reflexive semigroups and rings, Canad. Math. Bull. 15(2), (1972), 185–188.
Cherubini Spoletini, A. e A. Varisco,Sui semigruppi fortemente reversibili separativi, Istituto Lombardo (Rend. Sc.) 111, (1977), 31–43.
Cherubini Spoletini, A. e A. Varisco,Sui semigruppi i cui sottosemigruppi propri sono t-archimedei, Istituto Lombardo (Rend. Sc.) 112, (1978), 91–98.
Chrislock, J.L.,On medial semigroups, J. Algebra 12, (1969), 1–9.
Clifford, A.H. and G.B. Preston,The algebraic theory of semigroups, Amer. Mat. Soc., Providence, R. I., Vol. I, (1961).
Eršova, S.G.,Hamiltonian semigroups (Russian), Ural. Gos. Univ. Mat. Zap. 9, (1974), 22–29.
Hall, M.,The theory of groups, Mac Millan, N. Y., (1959).
Kimura, N. and T. Tamura,On decomposition of a commutative semigroup, Kodai Math. Sem. Rep. 4, (1954), 109–112.
Lal, H.,Quasi commutative primary semigroups, Math. Vesnik 12 (27), (1975), 271–278.
Mukherjee, N.P.,Quasi commutative semigroups I, Czech. Math. J. 22 (97), (1972), 449–453.
Nagore, C.S.H.,Quasi commutative Q-semigroups, Semigroup Forum 15, (1978), 189–193.
Nordahl, T.,Bands of power joined semigroups, Semigroup Forum 12, (1976), 289–311.
Petrich, M.Introduction to semigroups, Merrill Books, Columbus, Ohio, (1973).
Petrich, M.,Lectures in semigroups, Akad. Verlag Berlin-Wiley & Sons, (1977).
Putcha, M.S.,Semilattice decompositions of semigroups, Semigroup Forum 6, (1973), 12–34.
Putcha, M.S.,Band of t-archimedean semigroups, Semigroup Forum 6, (1973), 232–239.
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Spoletini, A.C., Varisco, A. Quasi commutative semigroups and σ-reflexive semigroups. Semigroup Forum 19, 313–321 (1980). https://doi.org/10.1007/BF02572524
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DOI: https://doi.org/10.1007/BF02572524