RIZUN, Nazar. Early States and Power in the Baltic Sea Region (8th–11th Centuries): A Comparative Study. European Scientific Journal, ESJ, [S. l.], v. 17, n. 39, p. 19, 2021. DOI: 10.19044/esj.2021.v17n39p19. Disponível em: https://test.eujournal.org/index.php/esj/article/view/14948. Acesso em: 19 apr. 2025.