http://sydneydemocracynetwork.org/article-brexit-yes-will-suffer-well/
https://ukandeu.ac.uk/post-global-britain-a-new-normal-in-uk-foreign-policy/?mc_cid=a36ff76330&mc_eid=815b1928ec
https://curia.europa.eu/jcms/upload/docs/application/pdf/2018-12/cp180187en.pdf
https://www.theguardian.com/politics/2017/nov/10/brexit-date-is-not-irreversible-says-man-who-wrote-article-50-lord-kerr