http://www.europarl.europa.eu/cmsdata/115748/IPOL_IDA(2017)583130_EN.pdf
https://www.brexitloket.nl/impactscan
https://socialeurope.eu/brexit-why-does-northern-ireland-matter-so-much
http://news.sky.com/story/theresa-may-theres-no-economic-case-for-breaking-up-the-uk-10787816