https://institute.global/news/brexit-realities-taking-back-control
https://publications.parliament.uk/pa/cm201719/cmselect/cmbeis/379/379.pdf
https://www.gov.uk/government/news/ip-and-brexit-the-facts
https://www.iod.com/Portals/0/PDFs/Campaigns%20and%20Reports/Europe%20and%20trade/IoD-Customising-Brexit.pdf?ver=2018-02-15-083137-800