https://ec.europa.eu/commission/publications/position-paper-essential-principles-citizens-rights_en
https://institute.global/sites/default/files/2020-07/Tony%20Blair%20Institute%2C%20A%20Path%20to%20Brexit%20Agreement%2C%20July%202020.pdf
http://www.telegraph.co.uk/news/0/tory-dup-deal-agreement-full/
https://ukandeu.ac.uk/the-windsor-framework-where-have-all-the-rebels-gone/