HELLBERG-RODE, Gesine; SCHRÜFER, Gabriele; HEMMER, Michael. Do Teachers Require Specific Skills to Implement Education for Sustainable Development (ESD)? Theoretical Framework, Study Design, and First Results. Journal of Geography Education, [S. l.], v. 42, n. 4, p. 257–281, 2014. DOI: 10.18452/23991. Disponível em: https://zgd-journal.de/index.php/zgd/article/view/120. Acesso em: 2 apr. 2026.