Seregin, Andrei V. “Comparative Legal Analysis of the Uniate and the Federal Union of Slavic States in the XII–XVI Centuries”. Journal of the Belarusian State University. Law, no. 1 (October 22, 2019): 3–13. Accessed July 17, 2026. https://journals.bsu.by/index.php/law/article/view/1498.