Serdeha, Ruslan. “Mykola Sumtsov and the Language of Folklore. ”. V. N. Karazin Kharkiv National University Bulletin ‘History of Ukraine. Ukrainian Studies: Historical and Philosophical Sciences’ 39 (December 23, 2024): 100-104. Accessed December 6, 2025. https://periodicals.karazin.ua/uahistory/article/view/24801.