https://www.ipg-journal.de/regionen/europa/artikel/detail/wind-in-ihren-segeln-4625/
https://www.opendemocracy.net/uk/looking-at-lexit/guy-aitchison/borders-open-borders-or-no-borders?utm_source=Daily+Newsletter&utm_campaign=0a51e05bcc-DAILY_NEWSLETTER_MAILCHIMP&utm_medium=email&utm_term=0_717bc5d86d-0a51e05bcc-407405485
https://www.strategie.gouv.fr/sites/strategie.gouv.fr/files/atoms/files/fs-2020-na91-niveau-territoire-juin.pdf
https://www.opendemocracy.net/en/beyond-trafficking-and-slavery/exploitation-rule-not-exception/