STÖLTING, Erhard. Festung Europa: Grenzziehungen in der Ost-West-Migration. PROKLA. Journal of Critical Social Science, Berlin, DE, v. 21, n. 83, p. 249–263, 1991. DOI: 10.32387/prokla.v21i83.1163. Disponível em: https://prokla.de/index.php/PROKLA/article/view/1163. Acesso em: 3 jul. 2024.