
http://fedtrust.co.uk/brexit-a-meaningful-vote-for-mps-implies-a-meaningful-vote-for-the-people/

http://www.ips-journal.eu/regions/europe/article/show/battle-of-the-bulldogs-2063/

https://www.instituteforgovernment.org.uk/sites/default/files/publications/5704%20IFG%20-%20Frictionless%20Trade%20Web.pdf