https://www.instituteforgovernment.org.uk/explainers/eu-withdrawal-bill-amendments-and-debates
http://www.conservativehome.com/parliament/2016/04/theresa-mays-speech-on-brexit-full-text.html
https://ec.europa.eu/commission/sites/beta-political/files/use-data-protection-information_en.pdf
http://www.cam.ac.uk/research/news/cognitive-flexibility-associated-with-voting-attitudes-in-eu-referendum-study-finds