CHOROWSKA, M.; BARTZ, W.; CABAN, M.; WODEJKO, E. The Piast castle on Ostrów Tumski island in Wrocław. Archaeologia Historica Polona, [S. l.], v. 28, p. 255–274, 2021. DOI: 10.12775/AHP.2020.010. Disponível em: https://apcz.umk.pl/AHP/article/view/36641. Acesso em: 29 sty. 2023.