https://publications.parliament.uk/pa/cm201719/cmselect/cmworpen/848/848.pdf
http://www.cam.ac.uk/research/news/cognitive-flexibility-associated-with-voting-attitudes-in-eu-referendum-study-finds
http://blogs.lse.ac.uk/brexit/2018/09/25/brexit-has-become-unnegotiable-theresa-may-has-a-constitutional-duty-to-admit-that-truth/