http://foodresearch.org.uk/wp-content/uploads/2016/03/Food-and-Brexit-briefing-paper-2.pdf
http://www.ecfr.eu/page/-/Keeping_Europe_Safe_After_Brexit2.pdf
http://ukandeu.ac.uk/an-utterly-pernicious-bill/
http://www.icaew.com/-/media/corporate/files/technical/economy/brexit/eu-exit-charge.ashx