“The Figure of King Danylo Romanovich in the Biographical Researches by M. F. Kotlyar (on the Occasion of 85-Years Jubilee of Scientist)”. 2017. V. N. Karazin Kharkiv National University Bulletin History of Ukraine. Ukrainian Studies: Historical and Philosophical Sciences 23 (June): 9-26. https://periodicals.karazin.ua/uahistory/article/view/8594.