Freitas, Dr. Marcos Flávio de Aguiar , Pedro Aristides de Castro, Dr. Sérgio de Figueiredo Rocha, and Renato Rodrigues Lisboa. 2021. “Musical Practices in a Trombone Quartet in Pandemic Times”. The Brazilian Trombone Association Journal 3 (1):127-36. https://periodicos.ufpb.br/ojs/index.php/btaj/article/view/60394.