
http://www.acea.be/uploads/publications/ACEA_position_paper-Brexit.pdf

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://constitution-unit.com/2017/10/02/citizens-assembly-on-brexit-results-and-initial-reflections/