
https://www.politico.eu/article/eu-ombudsman-emily-oreilly-calls-for-ethics-rules-revamp-qatar-lobbying-scandal-erupts-eva-kaili-european-parliament/

https://fnce.wharton.upenn.edu/wp-content/uploads/2023/07/Paper4_Bornstein.pdf

https://www.sipri.org/media/press-release/2018/global-arms-industry-us-companies-dominate-top-100-russian-arms-industry-moves-second-place