http://www.css.ethz.ch/content/dam/ethz/special-interest/gess/cis/center-for-securities-studies/pdfs/Cyber-Reports-2017-07.pdf
https://www.brookings.edu/wp-content/uploads/2022/03/Illicit-purchases-of-US-property.pdf
https://www.occrp.org/en/investigations/the-quiet-man-in-stockholm-who-laundered-chinas-oil-money-for-iran