https://www.esri.ie/system/files/publications/SUSTAT117.pdf
https://www.socialeurope.eu/wp-content/uploads/2018/05/BP1-Devolution.pdf
https://yougov.co.uk/news/2017/04/26/voting-intention-conservatives-45-labour-29-25-26-/
http://www.ecfr.eu/article/commentary_there_is_life_for_the_eu_after_brexit