SUNDBERG, Johan. Some observations on operatic singer’s intonation. Interdisciplinary Studies in Musicology, [S. l.], v. 10, p. 47–60, 2011. DOI: 10.14746/ism.2011.10.5. Disponível em: https://pressto.amu.edu.pl/index.php/ism/article/view/15017. Acesso em: 3 oct. 2026.