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References:
[1] BRUCK R. H.: Difference sets in a finite group. Trans. Amer. Math. Soc. 78 (1955), 464-484. MR 0069791 | Zbl 0065.13302
[2] CLIFFORD A. H.: Partially ordered Abelian groups. Ann. of Math. 41 (1940), 465-473. MR 0002134 | Zbl 0025.00801
[3] CLIFFORD A. H., PRESTON G. B.: The Algebraic Theory of Semigroups I; II. Amer. Math. Soc., Providence, R. I., 1961; 1967.
[4] FUCHS L.: Partially Ordered Algebraic Systems. Pergamon Press, Oxford, 1963. MR 0171864 | Zbl 0137.02001
[5] GROŠEK O., JAJCAY R.: Generalized difference sets on an infinite cyclic semigroup. J. Combin. Math. Combin. Comput. 13 (1993), 167-174. MR 1220610 | Zbl 0777.05025
[6] GROŠEK O., SATKO L.: A new notion in the theory of semigroups. Semigroup Forum 20 (1980), 233-240. MR 0582229
[7] GROŠEK O., SATKO L.: Smallest A-ideals in semigroups. Semigroup Forum 23 (1981), 297-309. MR 0638574 | Zbl 0484.20030
[8] LYAPIN E. S., AIZENSHTAT A. YA., LESOKHIN M. M.: Exercises in Group Theory. Plenum Press, New York, 1972. MR 0322018
[9] PUTCHA M. S.: Maximal cancellative subsemigroups and cancellative congruences. Proc. Amer. Math. Soc. 47 (1975), 49-52. MR 0352308 | Zbl 0307.20036
[10] RANKIN S. A., REIS, C M.: Semigroups with quasi-zeros. Canad. J. Math. XXXII (1980), 511-530. MR 0586972
[11] SATKO L., GROŠEK O.: On minimal A-ideals of semigroups. Semigroup Forum 23 (1981), 283-295. MR 0638573 | Zbl 0477.20047
[12] SATKO L., GROŠEK O.: On maximal A-ideals in semigroups. Colloq. Math. Soc. János Bolyai 39 (1981), 389-395. MR 0873161
[13] SCHWARZ Š.: On the structure of simple semigroups without zero. Czechoslovak Math. J. 1(76) (1951), 41-53. MR 0048428 | Zbl 0045.15608
[14] SHIMBIREVA H.: On the theory of partially ordered groups. Mat. Sb. 20 (1947), 145-178 MR 0020558 | Zbl 0029.10301
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