
https://blogs.lse.ac.uk/brexit/2019/10/09/northern-ireland-depends-on-the-eus-fluid-borders-for-survival/

https://blogs.lse.ac.uk/europpblog/2024/06/10/the-promise-and-meaning-of-the-european-political-community-after-the-2024-eu-and-uk-elections/

http://www.ips-journal.eu/regions/europe/article/show/free-spirits-2331/