IGLESIAS SÁNCHEZ, Sara. Points based systems and the Blue Card directive: concurrence and complementarity in the regulation of highly skilled migration in the European Union. Migraciones. Publicación del Instituto Universitario de Estudios sobre Migraciones, [S. l.], n. 28, p. 157–191, 2013. Disponível em: https://revistas.comillas.edu/revistamigraciones/article/view/1261. Acesso em: 13 mar. 2026.