SZCZYGIELSKI, K. Opolskie Voivodship’s Society — Main Challenges of the Region Development in Demographic Aspect. Regional Barometer. Analyses & Prognoses, [S. l.], v. 12, n. 2, p. 95–104, 2014. DOI: 10.56583/br.1059. Disponível em: https://czaz.akademiazamojska.edu.pl/index.php/br/article/view/1059. Acesso em: 8 nov. 2024.