Щербань, Анатолій. 2021. “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), 6-17. https://doi.org/10.26565/2227-6505-2020-31-01.