BAR, M.; JENDROŚKA, J. Dr Jan Jerzmański (1957-2021). The Opole Studies in Administration and Law, [S. l.], v. 19, n. 2, p. 9–15, 2021. Disponível em: https://czasopisma.uni.opole.pl/index.php/osap/article/view/4515. Acesso em: 12 may. 2025.