BRÜGGEMANN, T. Cumans in Southern Dobrudja : some remarks on the second Bulgarian empire during the twelfth and thirteenth centuries. Chronica, [S. l.], p. 57–71, 2007. Disponível em: https://ojs.bibl.u-szeged.hu/index.php/chronica/article/view/10730. Acesso em: 23 júl. 2024.