On left, right and two-sided cancellable elements of semigroups.
S-sets and semigroups of quotients.
On idempotent semifields and a paper by H. Hutchins.
Some remarks on certain partially ordered semigroups.
On 0-simple semirings, semigroup semirings and two kinds of division semirings.
On P-injective hulls of S-sets.
Embedding semigroups by translational hulls.
On quasi-ideals in contracted semigroups rings.
Semirings without zero divisors.
A new Kurosh-Amitsur radical theory for proper semifields. II.
A new Kurosh-Amitsur radical theory for proper semifields. I.
One-sided -ideals and -ideals in semirings.
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