http://www.reuters.com/article/us-britain-eu-verhofstadt-idUSKBN19V0WP
https://share.trin.cam.ac.uk/sites/public/Comms/Rogers_brexit_as_revolution.pdf
https://theconversation.com/six-graphs-showing-the-state-of-the-uk-economy-a-year-after-brexit-referendum-79598
http://www.ecfr.eu/page/-/Keeping_Europe_Safe_After_Brexit2.pdf