https://publications.parliament.uk/pa/bills/cbill/2019-2020/0007/20007.pdf
https://theconversation.com/michel-barnier-nomme-premier-ministre-emmanuel-macron-a-donne-les-cles-du-camion-au-rn-238388
http://news.sky.com/story/theresa-may-theres-no-economic-case-for-breaking-up-the-uk-10787816