http://europa.eu/rapid/press-release_IP-18-463_en.htm
https://ec.europa.eu/commission/sites/beta-political/files/joint_report.pdf
https://institute.global/sites/default/files/articles/Moving-On-How-the-British-Public-Views-Brexit-and-What-It-Wants-From-the-Future-Relationship-With-the-European-Union.pdf
https://www.chba.org.uk/for-members/library/overseas-seminars/the-status-of-gibraltar-under-eu-law