
https://www.ipg-journal.de/rubriken/aussen-und-sicherheitspolitik/artikel/die-maer-vom-trumpschen-rachefeldzug-4437/

https://www.gov.uk/guidance/status-of-eu-nationals-in-the-uk-what-you-need-to-know

https://publications.parliament.uk/pa/bills/cbill/2019-2020/0007/20007.pdf