„Fragile Buffer Zones. The Externalization Dynamism in the Field of Border Security and Possible Alternatives“. Zeitschrift für Migrationsforschung 2, no. 1 (Mai 25, 2022): 165–175. Zugegriffen April 29, 2026. https://journals.ub.uni-osnabrueck.de/index.php/zmf/article/view/158.