Botoso, Altamir. “‘Catálogos De Sombras’: Intertexts With Fernando Pessoa’s Heteronyms”. Letrônica 4, no. 2 (June 27, 2012): 144–154. Accessed September 27, 2025. https://pucrs.emnuvens.com.br/letronica/article/view/9242.