Róna-Tas A, ed. Language and History : Contributions to Comparative Altaistics. Vol. Vol. 25. SZTE BTK Institute of Hungarian Language and Literature University of Szeged; 1986. Accessed June 26, 2025. https://ebook.ek.szte.hu/index.php/btk-magyarnyelviirodalmi-intezet/catalog/book/192