https://www.nytimes.com/2017/05/29/opinion/britain-brexit-economy.html?_r=1
http://blogs.lse.ac.uk/brexit/2018/07/09/british-influence-in-brussels-had-been-far-greater-than-recognised/
https://www.nao.org.uk/wp-content/uploads/2018/01/Implementing-the-UKs-exit-from-the-European-Union-the-Deparment-for-International-Trade.pdf
https://ec.europa.eu/info/sites/info/files/com-2018-890-final.pdf