PETRUKHIN, V. The Title “khagan” in Оld Slavic Traditions. Chronica, [S. l.], v. 18, p. 236–240, 2019. Disponível em: https://ojs.bibl.u-szeged.hu/index.php/chronica/article/view/31986. Acesso em: 27 ápr. 2024.