Pseudo-symmetric ideals of semigroup and their radicals
Purity in the category of M-sets.
semigroups.
Qr-semigroups
Quasicommutative weakly primary semigroups
-systems of unary algebras. I: On maximal and greatest -classes of the direct product of unary algebras
Radicals and their left ideal analogues in a semigroup
RC-commutative ...-semigroups.
Regular semirings.
Reidemeister- Schreier type rewriting for semigroups.
Relationship between the inverse transversals of a regular semigroup.
Remark on one-sided -ideals of semigroups
Remark on partially ordered sets, universal algebras and semigroups
Remarks on 0-minimal quasi-ideals in semigroups.
Representations of semigroups of idempotents
Right compositions of semigroups
Right Prime Ideals and Maximal Right Ideals in Semigroups
Semigroup theoretical approach to normal ideals
Semigroups and lattices.
Semigroups and rings whose proper one-sided ideals are power joined