https://www.timeshighereducation.com/fr/books/review-shadows-empire-anglosphere-british-politics-michael-kenny-and-nick-pearce-polity-press
https://www.spiegel.de/politik/ausland/brexit-deutscher-ex-botschafter-warnt-vor-zu-selbstgefaelligem-blick-auf-grossbritannien-a-0e50fbd5-de82-4b1a-b7cc-eef28f56577c
http://www.icaew.com/-/media/corporate/files/technical/economy/brexit/eu-exit-charge.ashx