PREIDEL, H. Boba, Imre: Nomads, Northmen and Slavs. Eastern Europe in the Ninth Century. Südost-Forschungen, [S. l.], v. 1, n. 1, p. 392–393, 2021. Disponível em: http://bsb0sit-zepweb01.bsb.lrz.de/portal/index.php/sof/article/view/11818. Acesso em: 3 mai. 2024.