https://www.sfo.gov.uk/2018/03/22/sfo-recovers-4-4m-from-corrupt-diplomats-in-chad-oil-share-deal/
https://www.intaxwetrust.org/
https://www.occrp.org/en/investigations/calling-london
https://ecipe.org/wp-content/uploads/2020/07/ECI_20_OccPaper_04_2020_LY05.pdf