https://institute.global/news/tony-blair-parliaments-duty-brexit
https://www.bankofengland.co.uk/-/media/boe/files/report/2018/eu-withdrawal-scenarios-and-monetary-and-financial-stability.pdf?la=en&hash=B5F6EDCDF90DCC10286FC0BC599D94CAB8735DFB
https://publications.parliament.uk/pa/cm201719/cmselect/cmniaf/329/329.pdf
http://docs.dpaq.de/10395-0216-euco-conclusions.pdf