https://bdi.eu/media/pressecenter/#/artikel/news/brexit-wirft-seine-schatten-voraus/
http://www.libdems.org.uk/brexit-challenge-justice#
https://publications.parliament.uk/pa/bills/cbill/2017-2019/0005/18005.pdf
https://www.chba.org.uk/for-members/library/overseas-seminars/the-status-of-gibraltar-under-eu-law