http://fedtrust.co.uk/views-from-the-federal-trust/free-movement-and-migration/
https://infacts.org/brexit-britain-long-way-fall-touches-bottom/
https://www.opendemocracy.net/uk/leanne-wood/fault-lines-of-welsh-politics-have-been-redrawn?utm_source=Daily+Newsletter&utm_campaign=970123e408-DAILY_NEWSLETTER_MAILCHIMP&utm_medium=email&utm_term=0_717bc5d86d-970123e408-407405485
http://www.niesr.ac.uk/sites/default/files/publications/NIESR%20EU2%20MIGRATION%20REPORT.pdf