
https://yougov.co.uk/news/2017/04/26/voting-intention-conservatives-45-labour-29-25-26-/

https://s3.amazonaws.com/happiness-report/2018/ES-WHR.pdf

https://theconversation.com/unmarred-by-russian-spying-scandal-austrias-far-right-expected-to-cruise-to-victory-in-european-elections-231464