WITTLICH, Christian; BRÜHNE, Thomas. Development of ESD-criteria for Visualization and Evaluation of Implementation Processes in (Environmental) Education Concepts. Journal of Geography Education, [S. l.], v. 48, n. 1, p. 1–17, 2020. DOI: 10.18452/21387. Disponível em: https://zgd-journal.de/index.php/zgd/article/view/14. Acesso em: 2 apr. 2026.