http://www.britishchambers.org.uk/press-office/press-releases/bcc-open-letter-to-pm-businesses-need-clarity-on-brexit.html
https://theconversation.com/six-graphs-showing-the-state-of-the-uk-economy-a-year-after-brexit-referendum-79598
http://fedtrust.co.uk/brexitthe-conservative-centre-cannot-hold/