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

https://ep.ft.com/permalink/emails/eyJlbWFpbCI6ImRjNDUwNzg0NjNlMDVlZjJhMDU1ZWQ3NzliNjUyZjAwZmE4NzE5OWYwZSIsICJ0cmFuc2FjdGlvbklkIjoiYzViMzIyODEtMmExOC00NWJmLWI0MjYtNDZlM2Y1NmNmZTJjIiwgImJhdGNoSWQiOiI1ZTcyNDI4My1iZjE2LTQ3ZjMtYTJiNS1hZTgwMDRjOWZhZTAifQ==

https://www.brookings.edu/blog/order-from-chaos/2020/03/27/now-is-the-time-to-revisit-the-global-health-security-agenda/?utm_campaign=Brookings%20Brief&utm_source=hs_email&utm_medium=email&utm_content=85393092