http://www.css.ethz.ch/content/dam/ethz/special-interest/gess/cis/center-for-securities-studies/pdfs/CSSAnalyse225-EN.pdf
http://www.conservativehome.com/platform/2017/05/neale-richmond-no-deal-between-britain-and-the-eu-would-be-a-disaster-for-ireland.html
https://theconversation.com/germany-lowers-voting-age-to-16-for-the-european-elections-but-is-it-playing-into-the-far-rights-hands-229401