https://rusi.org/sites/default/files/newsbrief_37.3_elliott.pdf
https://blogs.sussex.ac.uk/uktpo/2018/12/17/organising-the-second-referendum/
http://www.imf.org/en/News/Articles/2017/05/12/ms051217-ireland-staff-concluding-statement-of-the-2017-article-iv-consultation
http://www.oecd.org/eco/outlook/economic-forecast-summary-united-kingdom-oecd-economic-outlook-june-2017.pdf