Amorim, Humberto, Ricardo Dias, Felipe de Almeida Ribeiro, and Fabio Poletto. “Sérgio Abreu and His Time”. Vortex Music Journal 11, no. 2 (October 6, 2023): 1–228. Accessed December 14, 2025. https://periodicos.unespar.edu.br/vortex/article/view/8345.