Бардола, К. “The Problem of Tax Debts and Specifics of Solutions for It in Byzantium IV-XI Centuries”. The Journal of V. N. Karazin Kharkiv National University. Series History, no. 51 (December 13, 2017): 8-13. Accessed December 22, 2024. https://periodicals.karazin.ua/history/article/view/9853.