VOLLMER, B. A. Making light of borders: The case of the external EU border. Migration Letters, London, UK, v. 9, n. 2, p. 131–140, 2012. DOI: 10.59670/ml.v9i2.102. Disponível em: https://migrationletters.com/index.php/ml/article/view/102. Acesso em: 2 may. 2024.