http://www.guengl.eu/uploads/publications-documents/NSkoutarisGUENGLReportC_%28002%29.pdf
https://www.bloomberg.com/news/features/2017-06-02/u-k-election-brexit-tests-loyalties-in-labour-stronghold?cmpid=BBBXT060217_BIZ&utm_medium=email&utm_source=newsletter&utm_term=170602&utm_campaign=brexit
http://www.independent.co.uk/news/uk/politics/article-127-brexit-stop-what-is-it-single-market-eu-eea-theresa-may-article-50-a7955806.html
https://yougov.co.uk/news/2017/08/01/britain-nation-brexit-extremists/