KUZIOR, Aleksandra. Polish and German Experiences in Planning and Implementation of Sustainable Development. Problemy Ekorozwoju, [S. l.], v. 5, n. 1, p. 81–89, 2010. Disponível em: https://ph.pollub.pl/index.php/preko/article/view/4769. Acesso em: 22 jul. 2024.