HUBA, M. We already know the winners of the 10th year of the Student Essay Competition on Sustainable Living. Envigogika, Praha, Czech Republic, v. 6, n. 2, 2011. DOI: 10.14712/18023061.166. Disponível em: https://envigogika.czp.cuni.cz/index.php/Envigogika/article/view/166. Acesso em: 5 dec. 2021.