
https://www.greatbritishpolitics.co.uk/europe/654-dual-nationality-and-the-hurdles-facing-britons-who-want-to-keep-eu-citizenship-after-brexit.html

https://www.eurofound.europa.eu/sites/default/files/ef_publication/field_ef_document/ef1729en.pdf

https://www.lobbycontrol.de/pressemitteilung/lobbyreport-2024-grosser-fortschritt-bei-lobbyregeln-und-was-die-ampel-noch-tun-muesste-2-114636/