Geographical and political background of Medieval nomads settling in the steppes of Eastern Europe

Ivanov, V. A., and M. I. Ivanova. 2011. “Geographical and Political Background of Medieval Nomads Settling in the Steppes of Eastern Europe”. Chronica 11 (January):18-34. https://ojs.bibl.u-szeged.hu/index.php/chronica/article/view/10776.