SKIBIŃSKI, E. The Silesian Piasts in chronicles. The Opole Studies in Administration and Law, [S. l.], v. 14, n. 4 (2), p. 9–23, 2016. DOI: 10.25167/osap.1306. Disponível em: https://czasopisma.uni.opole.pl/index.php/osap/article/view/1306. Acesso em: 5 dec. 2024.