SROKA, Stanisław A. Chrzest Węgier. Studia Pigoniana, [S. l.], v. 1, n. 1, p. 63–72, 2018. DOI: 10.12775/SP.2018.003. Disponível em: https://apcz.umk.pl/STP/article/view/SP.2018.003. Acesso em: 8 lip. 2025.