Чугуй, Тарас Олексійович. “Byzantine Factor in the Context of the European Politics of Galich-Volyn Prince Roman Mstislavovich”. Drinovsky sbornik 100 (August 20, 2019): 150-164. Accessed December 16, 2025. https://periodicals.karazin.ua/drinov/article/view/13897.