SCHAARWÄCHTER, Jürgen. The Selected Letters of William Walton. Edited by Malcolm Hayes; Humphrey Burton/Maureen Murray: William Walton. The Romantic Loner. A Centenary Portrait Album. Die Musikforschung, [S. l.], v. 56, n. 3, p. 318–319, 2003. DOI: 10.52412/mf.2003.H3.4950. Disponível em: https://mf.journals.qucosa.de/mf/article/view/4950. Acesso em: 19 apr. 2025.