http://ukandeu.ac.uk/brexit-a-french-perspective/
http://www.epc.eu/documents/uploads/pub_7576_northernirelandandbrexit.pdf
https://bdi.eu/media/pressecenter/#/artikel/news/brexit-wirft-seine-schatten-voraus/
http://europa.eu/rapid/press-release_IP-18-463_en.htm