https://www.bruegel.org/system/files/2024-05/WP%2014%202024_3.pdf
https://www.icij.org/investigations/fincen-files/inside-scandal-rocked-danske-estonia-and-the-shell-company-factories-that-served-it/?utm_source=ICIJ&utm_campaign=d21f826dea-0923_WeeklyEmail&utm_medium=email&utm_term=0_992ecfdbb2-d21f826dea-82447353
https://www.politico.eu/article/eu-ombudsman-emily-oreilly-calls-for-ethics-rules-revamp-qatar-lobbying-scandal-erupts-eva-kaili-european-parliament/
https://curia.europa.eu/jcms/upload/docs/application/pdf/2022-12/cp220205en.pdf