SHANAHAN, D.; HURON, D. Heroes and Villains: The Relationship between Pitch Tessitura and Sociability of Operatic Characters. Empirical Musicology Review, [S. l.], v. 9, n. 2, p. 141–153, 2014. Disponível em: https://www.osu.tests.sfulib4.publicknowledgeproject.org/index.php/EMR/article/view/4441. Acesso em: 29 apr. 2026.