ROBA, Bill. German-Iowan Strategies in Celebrating the Centennial of Alexander von Humboldt’s Birth. HiN – Alejandro de Humboldt en la Red. Revista internacional de estudios humboldtianos, [S. l.], v. 15, n. 29, p. 179–188, 2014. DOI: 10.18443/210. Disponível em: https://hin-online.de/index.php/hin/article/view/210. Acesso em: 31 may. 2026.