https://assets.ctfassets.net/rdwvqctnt75b/7iQEHtrkIbLcrUkduGmo9b/cb429a657e97cad61e61853c05c8c4d1/Hansard-Society__Audit-of-Political-Engagement-16__2019-report.pdf
https://ec.europa.eu/commission/priorities/deeper-and-fairer-economic-and-monetary-union/european-pillar-social-rights/european-pillar-social-rights-20-principles_en
https://www.lobbycontrol.de/pressemitteilung/lobbyreport-2024-grosser-fortschritt-bei-lobbyregeln-und-was-die-ampel-noch-tun-muesste-2-114636/