FIKTUS, P. A few comments on the auxiliary language in the light of the Act on national and ethnic minorities and regional languages. The Opole Studies in Administration and Law, [S. l.], v. 16, n. 2, p. 25–41, 2019. DOI: 10.25167/osap.1174. Disponível em: https://czasopisma.uni.opole.pl/index.php/osap/article/view/1174. Acesso em: 2 nov. 2024.