http://www.aviationlaw.eu/wp/wp-content/uploads/2013/09/Freedoms-of-the-Air-Explained.pdf
https://www.brookings.edu/blog/future-development/2020/01/27/sharing-the-burden-of-the-global-refugee-crisis/?utm_campaign=Brookings%20Brief&utm_source=hs_email&utm_medium=email&utm_content=82505194
https://www.irishexaminer.com/news/arid-41138992.html
https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:52019DC0278&from=EN