https://capx.co/for-the-eu-elite-brexit-is-a-chance-to-further-their-own-ambitions/
https://ec.europa.eu/commission/sites/beta-political/files/draft_withdrawal_agreement.pdf
http://blogs.lse.ac.uk/brexit/2018/09/25/brexit-has-become-unnegotiable-theresa-may-has-a-constitutional-duty-to-admit-that-truth/
https://www.iwh-halle.de/fileadmin/user_upload/publications/iwh_discussion_papers/iwh-discussion-paper_2019-04_Brautzsch_Holtemoeller.pdf