
https://blogs.lse.ac.uk/brexit/2020/03/09/brexit-is-a-policy-fiasco-were-voters-deceived-during-the-referendum/

http://fedtrust.co.uk/views-from-the-federal-trust/free-movement-and-migration/

https://rusi.org/sites/default/files/newsbrief_37.3_elliott.pdf