RYDZEWSKI, Paweł. Immigration and Social Aspects of Sustainable Development. The Case of Germany. Problemy Ekorozwoju , [S. l.], v. 15, n. 1, p. 25–31, 2020. DOI: 10.35784/pe.2020.1.03. Disponível em: https://ph.pollub.pl/index.php/preko/article/view/5138. Acesso em: 4 feb. 2026.