https://www.congress.gov/116/crpt/hrpt346/CRPT-116hrpt346.pdf
https://cerre.eu/wp-content/uploads/2023/07/CERRE-Virtual-Worlds-Issue-Paper-0723.pdf
https://www.irs.gov/pub/irs-pdf/p5241.pdf
https://www.cer.eu/sites/default/files/pbrief_corruption_27.4.21.pdf