https://publications.parliament.uk/pa/cm200203/cmhansrd/vo021126/debtext/21126-17.htm
http://www.ibec.ie/IBEC/Press/PressPublicationsdoclib3.nsf/vPages/Newsroom~uk%27s-brexit-approach-risks-damaging-uk-irish-relations-17-01-2017/%24file/Brexit+Priorities+Report.pdf
https://www.brexitloket.nl/impactscan
https://ec.europa.eu/commission/sites/beta-political/files/guiding-principles-dialogue-ei-ni_en.pdf