https://www.ft.com/content/b638551a-68c3-11e7-8526-7b38dcaef614
http://www.conservativehome.com/parliament/2016/04/theresa-mays-speech-on-brexit-full-text.html
https://www.fragomen.com/file/scottishfuturespdf
http://www.conservativegroupforeurope.org.uk/wordpress/wp-content/uploads/2017/09/Keeping-the-bridges-open-a-CGE-Policy-Options-Paper-.pdf