JOST, Peter. Richard Wagner: Sämtliche Briefe. Band 13, Band 14. Die Musikforschung, [S. l.], v. 58, n. 4, p. 455–457, 2005. DOI: 10.52412/mf.2005.H4.4901. Disponível em: https://mf.journals.qucosa.de/mf/article/view/4901. Acesso em: 19 apr. 2025.