http://www.assemblee-nationale.fr/14/pdf/rap-info/i4551.pdf
https://www.publications.parliament.uk/pa/ld201617/ldselect/ldeucom/116/116.pdf
https://ec.europa.eu/home-affairs/sites/homeaffairs/files/e-library/documents/policies/organized-crime-and-human-trafficking/corruption/docs/acr_2014_en.pdf
http://www.oxfordmartin.ox.ac.uk/downloads/academic/technology-globalisation-future-of-work_Mar2015.pdf
https://www.newpactforeurope.eu/documents/NPEFINALreportBelgiumonlineversion.pdf?m=1494341309
http://www.eca.europa.eu/Lists/ECADocuments/PRIX_LAZARO_FERNANDEZ_COMPLETE/PRIX_LAZARO_FERNANDEZ_COMPLETE_EN.PDF
http://euroefe.euractiv.es/1311_actualidad/4466026_la-ampliacion-de-la-ue-provoco-una-fuga-de-cerebros-de-este-a-oeste.html
https://www.publications.parliament.uk/pa/cm201617/cmselect/cmintrade/817/817.pdf
http://www.epc.eu/documents/uploads/pub_7655_riseofpostnationaldemocracy.pdf
http://www.conservativehome.com/thecolumnists/2017/05/christopher-howarths-guide-to-brexit-the-manifesto-must-convince-leavers-and-lock-in-our-escape-from-the-eu.html