http://www.britishelectionstudy.com/bes-findings/what-mattered-most-to-you-when-deciding-how-to-vote-in-the-eu-referendum/#.WWPVLnmQw2z
http://blogs.lse.ac.uk/brexit/2018/05/25/what-are-the-legal-aspects-of-packing-the-lords-with-brexit-friendly-peers/
https://www.sussex.ac.uk/webteam/gateway/file.php?name=briefing-paper-1.pdf&site=18