DOBOSZ, Józef. Mesco dux Polonie baptizatur – the Access of the Piast Power to the Respublica Christiana. Poznańskie Studia Slawistyczne, [S. l.], n. 10, p. 37–50, 2016. DOI: 10.14746/pss.2016.10.3. Disponível em: https://pressto.amu.edu.pl/index.php/pss/article/view/6353. Acesso em: 7 may. 2024.