
https://www.sfo.gov.uk/2018/03/22/sfo-recovers-4-4m-from-corrupt-diplomats-in-chad-oil-share-deal/

http://www.oecd.org/tax/beps/policy-note-beps-inclusive-framework-addressing-tax-challenges-digitalisation.pdf

https://www.acams.org/en/media/document/russia-sanctions-evasion-key-methods-and-techniques-part-1