http://sydneydemocracynetwork.org/article-brexit-yes-will-suffer-well/
http://blogactiv.eu/blog/2012/05/15/stumbling-towards-the-brexit/
https://ec.europa.eu/commission/publications/terms-reference-article-50-treaty-european-union-negotiations_en
https://ec.europa.eu/commission/sites/beta-political/files/joint_table_citizens_rights_-_third_round.pdf