- Norm on Semirings I.2010 | Faculty of Mathematics and Physics
- Finitely Generated Commutative Division Semirings2010 | Faculty of Mathematics and Physics
- Bi-ideal-simple semirings2005 | Faculty of Mathematics and Physics
- The semiring of 1-preserving endomorphisms of a semilattice2009 | Faculty of Mathematics and Physics
- The endomorphism semiring of a semilattice2009 | Faculty of Mathematics and Physics
- Various Examples of Parasemifields2009 | Faculty of Mathematics and Physics