https://blogs.lse.ac.uk/europpblog/2022/09/08/why-the-eu-needs-a-wartime-investment-plan/
http://library.fes.de/pdf-files/bueros/rom/16042.pdf
https://www.propublica.org/article/how-private-nonprofits-ultrawealthy-tax-deductions-museums-foundation-art
https://cthi.taxjustice.net/cthi2021/country-list.pdf