Alexander von Humboldt’s ideas on volcanism and their influence on Russian scientists . HiN - Alexander von Humboldt in the Net. International Review for Humboldt Studies, [S. l.], v. 6, n. 11, p. 31–37, 2005. DOI: 10.18443/66. Disponível em: https://hin-online.de/index.php/hin/article/view/66. Acesso em: 28 mar. 2026.