
https://www.global-counsel.co.uk/sites/default/files/analysis/insight/download/Hard%20and%20Soft%20Political%20Risk.pdf

http://www.britishelectionstudy.com/bes-findings/what-mattered-most-to-you-when-deciding-how-to-vote-in-the-eu-referendum/#.WWPVLnmQw2z

https://ukandeu.ac.uk/explainers/the-european-political-community/