The Concrete Voice Threshold: Vocoperformance and Poemusic in Augusto de Campos and Cid Campos . L&L [Internet]. 2023 Dec. 23 [cited 2025 Dec. 5];39(único):e3924 | p. 1-14. Available from: https://seer.ufu.br/index.php/letraseletras/article/view/70969