http://blogactiv.eu/blog/2012/05/15/stumbling-towards-the-brexit/
https://brc.org.uk/media/674001/a-fair-deal-for-consumers-february-2020.pdf
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/665871/December_-_Joint_technical_note_on_the_comparison_of_EU-UK_positions_on_citizens__rights.pdf
https://www.opendemocracy.net/en/can-europe-make-it/rest-and-west-thoughts-on-brexit-and-migration-part-one/