
https://researchbriefings.files.parliament.uk/documents/CBP-7212/CBP-7212.pdf

https://ukandeu.ac.uk/wp-content/uploads/2021/09/Global-Britain-views-from-abroad.pdf

https://blogs.lse.ac.uk/brexit/2019/06/26/did-we-ever-really-understand-how-the-eu-works/