https://www.publications.parliament.uk/pa/cm201617/cmselect/cmintrade/817/817.pdf
https://www.politico.eu/article/eu-uk-relations-rishi-sunak-brexit/
https://www.socialeurope.eu/brexit-can-be-stopped-but-the-window-of-opportunity-is-closing-fast
https://www.socialeurope.eu/2017/06/britains-deepening-confusion/