https://ec.europa.eu/commission/sites/beta-political/files/customs_controls_0.pdf
http://www.fdiintelligence.com/Landing-Pages/fDi-Podcast/The-fDi-Podcast?utm_campaign=fDi+Podcast%3A+August+2017&utm_source=emailCampaign&utm_medium=email&utm_content=
https://www.bloomberg.com/news/articles/2017-08-25/brexit-bulletin-when-silence-isn-t-golden