- The theory of infinity: how many infinities do exist?1999 | Publication without faculty affiliation
- The Touches of Eternity, Infinity, and Knowledge2020 | Faculty of Education
- Bolzano's Notion of Infinity and Truths in Themselves2007 | Publication without faculty affiliation
- The contemporary philosophy of truths and Christianity: Badiou and a materialist God2022 | Faculty of Education