https://www.occrp.org/en/29leaks/an-offer-they-couldnt-refuse
https://www.mckinsey.com/featured-insights/diversity-and-inclusion/five-fifty-the-color-of-wealth?cid=fivefifty-eml-alt-mkq-mck&hlkid=22632777838146f4a236ee00fa3ab2f1&hctky=2073353&hdpid=d18bd6c1-419e-4ecf-9f54-0bed589bb064#
https://www.iidh.ed.cr/derecho-informacion/media/1079/acuerdoescazu.pdf
https://www.ifw-kiel.de/fileadmin/Dateiverwaltung/IfW-Publications/-ifw/Kiel_Working_Paper/2022/KWP_2218_Which_countries_help_Ukraine_and_how_/KWP_2218_Trebesch_et_al_Ukraine_Support_Tracker.pdf