RIBEIRO-PEREIRA, Miguel. The Labyrinth of the Soul: Wagner’s Musical Lament. Revista Portuguesa de Musicologia, [S. l.], v. 3, n. 1, p. 35–56, 2016. Disponível em: https://rpm-ns.pt/index.php/rpm/article/view/290. Acesso em: 9 nov. 2025.