Shchavelev A. Treatise "De Administrando Imperio" by Emperor Constantine VII Porphyrogenitus: Date of the Paris. gr. 2009 Copy, Years of Compiling of the Original Codex, and a Hypothesis about the Number of Authors. SC [Internet]. 30 grudzień 2019 [cytowane 8 grudzień 2025];9:681-704. Dostępne na: https://www.czasopisma.uni.lodz.pl/sceranea/article/view/6745