http://fedtrust.co.uk/brexit-a-meaningful-vote-for-mps-implies-a-meaningful-vote-for-the-people/
https://blogs.sussex.ac.uk/uktpo/2018/02/15/sustainability-impact-assessment-for-post-brexit-britain/
https://publications.parliament.uk/pa/cm201719/cmselect/cmfaff/514/514.pdf
https://www.politico.eu/article/eu-uk-relations-rishi-sunak-brexit/