https://www.gov.uk/government/publications/information-about-the-withdrawal-bill
https://publications.parliament.uk/pa/cm201719/cmselect/cmexeu/1778/1778.pdf
https://blogs.lse.ac.uk/brexit/2020/02/26/long-read-from-anglo-irish-to-british-irish-relations-whats-next/
https://institute.global/sites/default/files/2020-07/Tony%20Blair%20Institute%2C%20A%20Path%20to%20Brexit%20Agreement%2C%20July%202020.pdf