BIEL, Krzysztof. Wstęp. Studia Paedagogica Ignatiana, [S. l.], v. 23, n. 3, p. 13–15, 2020. DOI: 10.12775/32318. Disponível em: https://apcz.umk.pl/SPI/article/view/32318. Acesso em: 3 mar. 2025.