https://committees.parliament.uk/oralevidence/2766/pdf/
https://publications.parliament.uk/pa/cm201719/cmselect/cmcumeds/365/36503.htm
https://www.chba.org.uk/for-members/library/overseas-seminars/the-status-of-gibraltar-under-eu-law
https://curia.europa.eu/jcms/upload/docs/application/pdf/2018-12/cp180187en.pdf