https://www.opendemocracy.net/neweconomics/brexit-global-south-time-end-free-trade-imperialism/
http://visual.ons.gov.uk/trading-places-uk-goods-trade-with-eu-partners/
http://carnegieeurope.eu/2017/06/15/bringing-brexit-back-to-reality-pub-71262
http://www.britishchambers.org.uk/press-office/press-releases/bcc-no-deal-not-an-option-for-business-communities.html