http://cadmus.eui.eu/bitstream/handle/1814/45187/Ebook_IntegrationMigrantsRefugees2017.pdf?sequence=3&isAllowed=y
https://ec.europa.eu/commission/sites/beta-political/files/financial-settlement-essential-principles-draft-position-paper_en.pdf
http://blogs.lse.ac.uk/brexit/2017/08/22/what-does-respecting-the-referendum-result-mean/