STRUCK, Michael. Peter Russell: Johannes Brahms and Klaus Groth. The Biography of a Friendship. Die Musikforschung, [S. l.], v. 63, n. 1, p. 75–78, 2025. DOI: 10.52412/mf.2010.H1.4073. Disponível em: https://mf.journals.qucosa.de/mf/article/view/4073. Acesso em: 19 jan. 2025.