https://www.wto.org/english/res_e/reser_e/ullbergpresentation_e.pdf
http://www.fdiintelligence.com/Locations/Europe/United-Kingdom/Brexit-the-UK-and-FDI-one-year-on?utm_campaign=Enews+June+2nd+issue&utm_source=emailCampaign&utm_medium=email&utm_content=
https://www.news.admin.ch/de/nsb?id=83705
https://www.wto.org/english/tratop_e/dispu_e/487abr_e.pdf