https://www.socialeurope.eu/economic-sovereignty-delusion
https://www.cer.eu/sites/default/files/insight_SL_5.11.19_2.pdf
https://uk.finance.yahoo.com/news/brexit-risk-destroying-uks-entrepreneurial-start-ups-warwick-business-school-151240554.html
http://www.cer.eu/sites/default/files/pb_ireland_brexit_6.7.17.pdf