ZECHA, S. .; TRAPPE, M. . The Treatment of Natural Events in Geography Curricula for Secondary Schools in Germany. International Journal of Learning, Teaching and Educational Research, [S. l.], v. 10, n. 1, p. 22–34, 2015. Disponível em: https://ijlter.myres.net/index.php/ijlter/article/view/1127. Acesso em: 14 aug. 2026.