https://www.socialeurope.eu/brexit-status-quo-ex-ante
https://committees.parliament.uk/oralevidence/2766/pdf/
https://www.irishtimes.com/opinion/editorial/the-irish-times-view-on-brexit-day-britain-s-great-leap-backwards-1.4156666
http://ukandeu.ac.uk/wp-content/uploads/2017/06/One-year-on.pdf