
http://www.aviationlaw.eu/wp/wp-content/uploads/2013/09/Freedoms-of-the-Air-Explained.pdf

https://www.politico.eu/article/time-for-brexit-reckoning-uk-eu-relationship/

https://www.ifri.org/fr/publications/briefings-de-lifri/un-changement-depoque-vers-une-reorientation-de-politique-etrangere