Чугуй, Тарас. “Political Activity of the First Galich-Volyn Prince Roman Mstislavovich”. V. N. Karazin Kharkiv National University Bulletin History of Ukraine. Ukrainian Studies: Historical and Philosophical Sciences 210 (September 19, 2016): 6-20. Accessed June 4, 2026. https://periodicals.karazin.ua/uahistory/article/view/6048.