УдовенкоuЛ. “The Leisure of Kharkiv Dwellers in the 70-Ies the XIX Century”. V. N. Karazin Kharkiv National University Bulletin ‘History of Ukraine. Ukrainian Studies: Historical and Philosophical Sciences’, Vol. 21, Sept. 2016, pp. 52-56, https://periodicals.karazin.ua/uahistory/article/view/6053.