https://www.parliament.uk/documents/commons-committees/culture-media-and-sport/Background%20paper%20-%202016%20Referendum%20Expenses%20Opinion%20-%20Matrix%20Chambers.pdf
http://www.ips-journal.eu/regions/global/article/show/brexit-but-what-about-africa-2199/
http://www.ecfr.eu/article/commentary_the_brexit_threat_to_britains_defence_industry