HENNINGS, Werner. Die Herausforderung der Postmoderne. Journal of Geography Education, [S. l.], v. 20, n. 1, p. 19–32, 1992. DOI: 10.60511/zgd.v20i1.373. Disponível em: https://zgd-journal.de/index.php/zgd/article/view/373. Acesso em: 2 apr. 2026.