Moreira, Daniela da Silva, and Alberto José Vieira Pacheco. “Pronunciations of Sung Brazilian Portuguese: A Vocal Analysis of Recordings by Baritone Ernesto De Marco”. Per Musi 24 (May 6, 2023): 1–29. Accessed May 13, 2024. https://periodicos.ufmg.br/index.php/permusi/article/view/41909.