Lech Łbik. Kronika Bydgoska, [S. l.], v. 44, p. 517–522, 2025. DOI: 10.34767/. Disponível em: https://czasopisma.ukw.edu.pl/index.php/kronika-bydgoska/article/view/1837.. Acesso em: 4 jul. 2025.