https://corporateeurope.org/en/2020/10/facebook-friends-lobby-consultants
https://henryjacksonsociety.org/wp-content/uploads/2020/12/HJS-Russian-Sanctions-Report-web.pdf
https://www.occrp.org/en/rotenberg-files/
https://ecipe.org/wp-content/uploads/2023/06/ECI_23_PolicyBrief_06-2023_LY05.pdf