- Various Examples of Parasemifields2009 | Faculty of Mathematics and Physics
- Notes on commutative parasemifields2009 | Faculty of Mathematics and Physics
- Commutative Parasemifields Finitely Generated as Semirings2010 | Faculty of Mathematics and Physics
- Idempotence of finitely generated commutative semifields2018 | Faculty of Mathematics and Physics
- Various Subsemirings of the Field Q of Rational Numbers2009 | Faculty of Mathematics and Physics
- Norm on Semirings I.2010 | Faculty of Mathematics and Physics
