
https://www.cips.org/en/news/news/businesses-preparing-to-sever-supply-chain-ties-between-the-uk-and-the-eu-to-avoid-brexit-tariffs/

http://blogs.lse.ac.uk/brexit/2017/07/05/bloody-difficult-britain-has-already-blown-its-chances-of-a-good-deal-from-the-eu27/

https://publications.parliament.uk/pa/cm201719/cmselect/cmsctech/705/70503.htm#_idTextAnchor001