https://infacts.org/brexit-britain-long-way-fall-touches-bottom/
https://cerre.eu/wp-content/uploads/2024/01/CERRE.BOOK_.DMA_.17JAN.pdf
http://ukandeu.ac.uk/brexit-a-french-perspective/
https://blogs.lse.ac.uk/brexit/2019/06/26/did-we-ever-really-understand-how-the-eu-works/