BAGOLY-SIMÓ, Péter; HEMMER, Ingrid. Research in Geography Education in Light of ZGD 1973–2016. Journal of Geography Education, [S. l.], v. 45, n. 4, p. 19–42, 2017. DOI: 10.18452/23116. Disponível em: https://zgd-journal.de/index.php/zgd/article/view/85. Acesso em: 2 apr. 2026.