
https://www.parliament.uk/documents/commons-committees/culture-media-and-sport/Note-by-Chair-and-selected-documents-ordered-from-Six4Three.pdf

https://www.zi-mannheim.de/fileadmin/user_upload/downloads/forschung/forschungsverbuende/MHG-Studie-Endbericht-Zusammenfassung.pdf

https://www.wsj.com/us-news/americans-leaving-the-us-migration-a5795bfa