https://publications.parliament.uk/pa/cm201719/cmselect/cmcumeds/365/36503.htm
https://www.eca.europa.eu/Lists/ECADocuments/Briefing_paper_MFF/Briefing_paper_MFF_EN.pdf
https://publications.parliament.uk/pa/cm201719/cmselect/cmhaff/421/421.pdf
http://www2.assemblee-nationale.fr/documents/notice/15/europe/rap-info/i0596/(index)/rapports-information
ftp://ftp.unibocconi.it/pub/RePEc/bcu/papers/iefewp69.pdf
http://www.consilium.europa.eu//media/32504/xt21004-ad01re02en18.pdf
http://www2.assemblee-nationale.fr/documents/notice/15/rap-info/i0611/(index)/rapports-information
http://ecdpm.org/wp-content/uploads/Charting-the-course-to-2020-Fundamental-choices-for-the-negotiation-of-a-future-ACP-EU-partnership-Medinillla-Bossuyt-ECDPM.pdf
http://fedtrust.co.uk/views-from-the-federal-trust/free-movement-and-migration/
https://www.brookings.edu/wp-content/uploads/2018/02/leave-no-country-behind_global-working-paper.pdf