
https://www.nytimes.com/2017/05/29/opinion/britain-brexit-economy.html?_r=1

http://www.independent.co.uk/news/uk/politics/article-127-brexit-stop-what-is-it-single-market-eu-eea-theresa-may-article-50-a7955806.html

https://publications.parliament.uk/pa/ld201719/ldselect/ldeucom/63/63.pdf