https://theconversation.com/an-entry-fee-may-not-be-enough-to-save-venice-from-20-million-tourists-213703
https://www.strategie.gouv.fr/sites/strategie.gouv.fr/files/atoms/files/cnp-2021-deuxieme-rapport-janvier.pdf
https://blogs.lse.ac.uk/europpblog/2021/09/28/what-capitalism-needs-forgotten-lessons-of-great-economists/