http://blogs.lse.ac.uk/brexit/2017/09/28/the-eu-referendum-was-gerrymandered/
https://publications.parliament.uk/pa/cm201719/cmselect/cmbeis/379/379.pdf
https://www.socialeurope.eu/2017/06/britains-deepening-confusion/
http://ukandeu.ac.uk/cancelling-brexit-what-would-happen-if-we-changed-our-mind-about-leaving-the-eu/