HUEBENER, Theodore. John Peter Altgeld: The Forgotten Eagle. Yearbook of German-American Studies, [S. l.], v. 18, p. 87–90, 1983. DOI: 10.17161/ygas.v18i.19391. Disponível em: https://journals.ku.edu/ygas/article/view/19391.. Acesso em: 19 may. 2024.