GAJEWSKI, S. The principle of prompt and simple proceedings in cases of old-age and disability pensions. The Opole Studies in Administration and Law, [S. l.], v. 16, n. 3, p. 99–113, 2019. DOI: 10.25167/osap.1200. Disponível em: https://czasopisma.uni.opole.pl/index.php/osap/article/view/1200. Acesso em: 6 nov. 2024.