
http://www.ips-journal.eu/regions/europe/article/show/game-set-and-match-2118/

https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/502291/54284_EU_Series_No1_Web_Accessible.pdf

https://researchbriefings.files.parliament.uk/documents/CBP-7212/CBP-7212.pdf