WOJNAR, M. The west and the great steppe in the history of Rus and Russia. Studia z Dziejów Rosji i Europy Środkowo-Wschodniej, [S. l.], v. 47, 2012. DOI: 10.12775/SDR.2012.20. Disponível em: https://apcz.umk.pl/SDR/article/view/SDR.2012.20. Acesso em: 24 lip. 2024.