Solana, Miguel, Verónica de Miguel Luken, Dan Rodríguez García, and Àngels Pascual de Sans. “Official Language Knowledge Among Foreign-Born Immigrants in Catalonia, Spain, and Implications for Their Social Integration”. Migraciones. Publicación del Instituto Universitario de Estudios sobre Migraciones, no. 32 (February 22, 2013): 103–138. Accessed March 11, 2026. https://revistas.comillas.edu/revistamigraciones/article/view/910.