http://www.lawsociety.org.uk/news/stories/leaving-in-an-orderly-fashion-our-approach-to-brexit/
https://publications.parliament.uk/pa/bills/cbill/58-03/0204/220204.pdf
https://theconversation.com/britain-better-fix-its-identity-crisis-fast-or-risk-a-disastrous-brexit-81227
https://www.parliament.uk/documents/lords-committees/eu-select/Third-Interparliamentary-Forum-on-Brexit-statement.pdf