
https://www.acams.org/en/media/document/russia-sanctions-evasion-key-methods-and-techniques-part-2

https://www.epsu.org/sites/default/files/article/files/Going%20Public_EPSU-PSIRU%20Report%202019%20-%20EN.pdf

https://www.progressivepolicy.org/blogs/ppis-trade-fact-of-the-week-military-spending-was-2-3-of-world-gdp-last-year/