MERRILL, Peter C. Henry Vianden: Pioneer Artist in Milwaukee. Yearbook of German-American Studies, [S. l.], v. 22, p. 137–148, 1987. DOI: 10.17161/ygas.v22i.19320. Disponível em: https://journals.ku.edu/ygas/article/view/19320.. Acesso em: 17 may. 2024.