DLOUHÁ, J. Environmental Education - Sorted, we can start (not only with practice). Envigogika, Praha, Czech Republic, v. 2, n. 3, 2007. DOI: 10.14712/18023061.282. Disponível em: https://www.envigogika.cuni.cz/index.php/Envigogika/article/view/282. Acesso em: 22 sep. 2020.