Щербань, Анатолій. “The Role of Opishnia in the History of Slobozhanshchina of the 17th Century”. V. N. Karazin Kharkiv National University Bulletin ‘History of Ukraine. Ukrainian Studies: Historical and Philosophical Sciences’ 31 (June 16, 2021): 6-17. Accessed April 29, 2024. https://periodicals.karazin.ua/uahistory/article/view/17367.