http://blogs.lse.ac.uk/brexit/2017/09/28/the-eu-referendum-was-gerrymandered/
https://publications.parliament.uk/pa/ld201719/ldselect/ldeucom/63/63.pdf
https://www.socialeurope.eu/2017/06/britains-deepening-confusion/
https://openeurope.org.uk/today/blog/what-would-a-no-deal-after-the-transition-period-look-like/