Varajidás, Henrique. “Além Das Caricaturas: Nazismo, Racismo E Ciências Raciais (1924-1936) | Beyond Caricatures: Nazism, Racism and Racial Sciences (1924-1936)”. Political Observer | Revista Portuguesa de Ciência Política (Portuguese Journal of Political Science), no. 16 (February 15, 2022). Accessed October 27, 2025. https://rpcp.pt/index.php/rpcp/article/view/115.