https://www.publications.parliament.uk/pa/ld201617/ldselect/ldeucom/116/116.pdf
http://www.consilium.europa.eu//media/32504/xt21004-ad01re02en18.pdf
https://dbei.gov.ie/en/Publications/Publication-files/Ireland-and-the-Impacts-of-Brexit.pdf
http://fedtrust.co.uk/after-the-election-comes-the-painful-brexit-reality/