Чугуй, Т. 2019. Pressing Questions of Historiography of Rus’-Hungarian Relations of the First Third of the XIII Century. V. N. Karazin Kharkiv National University Bulletin ‘History of Ukraine. Ukrainian Studies: Historical and Philosophical Sciences’. 27, (Mar. 2019), 12-28. DOI:https://doi.org/10.26565/2227-6505-2018-27-02.