http://voxeu.org/system/files/epublication/Brexit_Beckons_VoxEU.pdf
http://www.abpi.org.uk/media/4575/uk-exiting-from-eu_life-science-industry-coalition_position-paper.pdf
http://blogs.lse.ac.uk/brexit/2018/05/15/switzerland-wanted-more-immigration-controls-but-economic-self-interest-will-probably-prevail/