SCHAARWÄCHTER, Jürgen. John Purser: Erik Chisholm, Scottish Modernist (1904–1965). Chasing a Restless Muse. . Die Musikforschung, [S. l.], v. 64, n. 1, p. 85–86, 2025. DOI: 10.52412/mf.2011.H1.4004. Disponível em: https://mf.journals.qucosa.de/mf/article/view/4004. Acesso em: 24 feb. 2025.