https://www.ft.com/content/b638551a-68c3-11e7-8526-7b38dcaef614
https://ec.europa.eu/commission/publications/terms-reference-article-50-treaty-european-union-negotiations_en
http://bruegel.org/wp-content/uploads/2017/03/WP_2017_03-.pdf
https://institute.global/news/globalisation-brexit-and-transatlantic-alliance