The trade union freedom of foreigners with no authorization to work. Migraciones. Publicación del Instituto Universitario de Estudios sobre Migraciones, [S. l.], n. 18, p. 199–215, 2014. Disponível em: https://revistas.comillas.edu/revistamigraciones/article/view/3050. Acesso em: 15 dec. 2025.