
http://openeurope.org.uk/today/blog/will-brexit-ground-flights-europe/

https://www.bruegel.org/sites/default/files/2025-08/PB%2023%202025_2.pdf

https://www.warner.senate.gov/public/_cache/files/4/f/4fa9c9ba-2b34-4854-8c19-59a0a9676a31/66DECFBC0D6E6958C2520C3A6A69EAF6.safe-tech-act—final.pdf