Golubev А. 2023. Features of the Polemic with the Bogomils in the Works of Euthymius Zigabenus ‘Against the Bogomils’ and ‘Sermon Against the Heretics’ of the Priest Cosmas. Theological Bulletin. 3 (50) (Nov. 2023), 202–222. DOI:https://doi.org/10.31802/GB.2023.50.3.010.