http://fedtrust.co.uk/a-chaotic-brexit-is-still-a-possibility/
http://blogs.lse.ac.uk/brexit/2017/09/28/the-eu-referendum-was-gerrymandered/
https://www.opendemocracy.net/uk/gerry-hassan/brexit-dunkirk-and-britain-where-past-shapes-future?utm_source=Daily+Newsletter&utm_campaign=56585cbb86-DAILY_NEWSLETTER_MAILCHIMP&utm_medium=email&utm_term=0_717bc5d86d-56585cbb86-407405485
https://www.nao.org.uk/wp-content/uploads/2018/10/The-UK-border-preparedness-for-EU-exit.pdf