Puig-Samper M Ángel, Rebok S. Charles Darwin and Alexander von Humboldt: An exchange of looks between two famous naturalists. Humboldt im Netz [Internet]. 21 aprile 2010 [citato 26 maggio 2026];11(21):55-64. Disponibile su: https://hin-online.de/index.php/hin/article/view/145