https://bdi.eu/#/artikel/news/europa-muss-ein-worst-case-szenario-verhindern/
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/682894/Draft_Text_for_Discussion_-_Implementation_Period__1_.pdf
https://ec.europa.eu/info/sites/info/files/com-2018-890-final.pdf
http://www.conservativehome.com/platform/2017/05/what-would-wto-mean-andrew-stoler-and-geoff-raby-brexit-britain-has-no-need-to-fear-wto-terms.html