
https://www.bruegel.org/sites/default/files/2024-02/PB%2004%202024_0.pdf

https://theconversation.com/an-entry-fee-may-not-be-enough-to-save-venice-from-20-million-tourists-213703

https://www.aspistrategist.org.au/germanys-national-security-strategy-misses-the-mark/