
https://www.chba.org.uk/for-members/library/overseas-seminars/the-status-of-gibraltar-under-eu-law

https://www.politico.eu/wp-content/uploads/2021/11/15/2021.11.15-Letter-to-EC-on-quality-of-replies-to-parliamentary-questions.pdf

https://www.faz.net/aktuell/politik/inland/schaeuble-zu-ezb-urteil-unausweichlich-aber-auch-gefaehrlich-16760195.html