
https://publications.parliament.uk/pa/cm201719/cmselect/cmfaff/514/514.pdf

http://www.ecfr.eu/article/commentary_there_is_life_for_the_eu_after_brexit

https://www.iod.com/Portals/0/PDFs/Campaigns%20and%20Reports/Europe%20and%20trade/IoD-Customising-Brexit.pdf?ver=2018-02-15-083137-800