https://www.chba.org.uk/for-members/library/overseas-seminars/the-status-of-gibraltar-under-eu-law
https://blogs.lse.ac.uk/europpblog/2023/12/18/is-there-a-future-for-the-eus-eastern-partnership/
https://www.opendemocracy.net/can-europe-make-it/nick-rider/catalonia-spain-referendum-there-is-more-than-one-nationalism-in-iberian-peninsula