REINKE, Verena. Is There a Difference in the Professional Competence of Geography Teachers and Nonformal ESD Educators? Results of an Empirical Study. Journal of Geography Education, [S. l.], v. 49, n. 3, p. 106–127, 2021. DOI: 10.18452/23389. Disponível em: https://zgd-journal.de/index.php/zgd/article/view/64. Acesso em: 2 apr. 2026.