REMPFLER, Armin. Competence of System Thinking: State of the Art and Research Questions. Journal of Geography Education, [S. l.], v. 37, n. 2, p. 58–79, 2009. DOI: 10.60511/zgd.v37i2.200. Disponível em: https://zgd-journal.de/index.php/zgd/article/view/200. Acesso em: 2 apr. 2026.