https://publications.parliament.uk/pa/ld201719/ldselect/ldeucom/63/63.pdf
http://www.epc.eu/documents/uploads/pub_7576_northernirelandandbrexit.pdf
https://ukandeu.ac.uk/wp-content/uploads/2020/06/Mind-the-values-gap.pdf
https://www.opendemocracy.net/can-europe-make-it/andreas-rahmatian/eu-as-britain-s-constitutional-stabiliser?utm_source=Daily+Newsletter&utm_campaign=8d26251e8d-DAILY_NEWSLETTER_MAILCHIMP&utm_medium=email&utm_term=0_717bc5d86d-8d26251e8d-407405485