http://www.cer.org.uk/sites/default/files/insight_js_st_9.6.17.pdf
https://centreforbrexitpolicy.org.uk/wp-content/uploads/2020/07/REPLACING-THE-WITHDRAWAL-AGREEMENT-How-to-ensure-the-UK-takes-back-control-on-exiting-the-transition-period-12-July-20.pdf
https://www.socialeurope.eu/2017/07/fallacies-brexit-personifying-countries-simplistic-polemics/
https://blogs.lse.ac.uk/brexit/2019/04/15/brexit-lessons-from-the-silesian-backstop-of-1919-25/