https://institute.global/news/brexit-realities-taking-back-control
https://publications.parliament.uk/pa/ld201719/ldselect/ldeucom/63/63.pdf
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/648148/September_-_Joint_technical_note_on_the_comparison_of_EU-UK_positions_on_citizens__rights.pdf
https://eupinions.eu/index.php?id=12463