Schuchalter, Jerry. “Geld and Geist in the Writings of Gottfried Duden, Nikolaus Lenau, and Charles Sealsfield: A Study of Competing America-Paradigms”. Yearbook of German-American Studies 27 (December 1, 1992): 49–72. Accessed May 12, 2025. https://journals.ku.edu/ygas/article/view/19227.