SZYBKOWSKI, Sobiesław. Wojciech of Bnin in Captivity, Held by the Teutonic Knights. Epistographic Documentation. Medieval Studies, [S. l.], n. 24, p. 393–412, 2020. DOI: 10.26881/sds.2020.24.15. Disponível em: https://czasopisma.bg.ug.edu.pl/index.php/stzdsr/article/view/6273. Acesso em: 20 may. 2024.