https://institute.global/news/brexit-realities-taking-back-control
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/502291/54284_EU_Series_No1_Web_Accessible.pdf
http://blogactiv.eu/blog/2012/05/15/stumbling-towards-the-brexit/
https://publications.parliament.uk/pa/cm201719/cmselect/cmworpen/848/848.pdf