ZECHA, Stefanie. How Important is the Environment to Adolescents Today? An Empirical Study on Environmental Awareness among Pupils of Different Age Groups. Journal of Geography Education, [S. l.], v. 39, n. 2, p. 57–78, 2011. DOI: 10.18452/25269. Disponível em: https://zgd-journal.de/index.php/zgd/article/view/162. Acesso em: 2 apr. 2026.