Die Fußnote über Geognosia in Humboldts Florae Fribergensis specimen. HiN - Alexander von Humboldt in the Net. International Review for Humboldt Studies, [S. l.], v. 8, n. 14, p. 41–56, 2007. DOI: 10.18443/90. Disponível em: https://hin-online.de/index.php/hin/article/view/90. Acesso em: 28 mar. 2026.