Castro, Hugo. “Through the Fields and the Cities: Musical and Political Activity of the Coro Da Juventude Musical Portuguesa (1969-1976)”. Cadernos do Arquivo Municipal, no. 21 (May 13, 2024): 1–19. Accessed September 8, 2024. https://cadernosarquivo.cm-lisboa.pt/index.php/am/article/view/346.