https://www.wilsoncenter.org/blog-post/ukraines-budget-2024
https://www.ifo.de/DocDL/EEAG-2019-executive-summary.pdf
https://www.econstor.eu/bitstream/10419/283282/1/1877510009.pdf
https://www.icij.org/investigations/paradise-papers/fairer-transparent-tax-system-will-lost-vested-interests-without-public-pressure-warns-eu-tax-commissioner/