https://www.inequalityindex.com/
http://blogs.lse.ac.uk/brexit/2017/12/05/a-high-risk-game-of-chicken-is-being-played-over-the-irish-border/
https://www.legifrance.gouv.fr/affichTexte.do?cidTexte=LEGITEXT000006070722
https://www.ifs.org.uk/publications/10302
https://institute.global/news/brexit-what-we-now-know
http://blogs.lse.ac.uk/brexit/2018/01/04/what-euroscepticism-looks-like-in-central-and-eastern-europe/
https://www.opendemocracy.net/can-europe-make-it/nicola-bertoldi/are-we-living-through-new-weimar-era-constructive-resolutions-for?utm_source=Daily+Newsletter&utm_campaign=367a142d39-DAILY_NEWSLETTER_MAILCHIMP&utm_medium=email&utm_term=0_717bc5d86d-367a142d39-407405485
http://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:32014R0600&from=EN
http://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:32014L0065&from=EN
https://www.legifrance.gouv.fr/affichTexte.do?cidTexte=JORFTEXT000000508749