https://blogs.sussex.ac.uk/uktpo/2017/09/01/the-eu-regulatory-magnet/
http://www.fdf.org.uk/news.aspx?article=8062
https://www.conservativehome.com/parliament/2018/07/our-brexit-plan-takes-back-control-of-money-laws-and-borders-and-heres-how-may-and-raabs-letter-to-conservative-mps.html
https://www.esri.ie/system/files/publications/WP677_0.pdf