https://publications.parliament.uk/pa/ld5801/ldselect/ldeucom/4/4.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://committees.parliament.uk/publications/8781/documents/88926/default/
http://uk.businessinsider.com/former-eu-negotiator-mays-government-has-handled-brexit-in-the-absolute-worst-way-2017-7