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. DOI: 10.18061/emr.v9i2.4441. Disponível em: https://emusicology.org/index.php/EMR/article/view/4441. Acesso em: 9 dec. 2023.