- From the Crisis of Tsardom to the Crisis of Values (Contexts of Ivan Timofeyev)2011 | Faculty of Arts
- Honorific of Tsar and Image of Tsardom in the Second Bulgarian Tsardom and Muscovite Principality2006 | Faculty of Arts
- From Rus' to the Tsardom of Moscow2023 | Faculty of Arts
- Memory of Oblivion? Development of the Myth of beginning in Medieval Bulgaria in Comparation with Neighbouring Orthodox States2013 | Faculty of Arts
- Between Christian Universalism and Imperial Idea: Russia of 17th and 18th Century at Crossroad of History2017 | Faculty of Arts
- Muscovite Russia and Europe2018 | Faculty of Arts
- Celebrated and Forgotten: Historical memory and commemoration of Bulgarian khans in the Second Bulgarian Empire2018 | Faculty of Arts
- The Emperors or The Lords? Succesors of Stephen the Great and Their Title "Tsar" in Chronicle of Macarie2018 | Faculty of Arts