https://www.gov.uk/government/news/joint-article-a-deep-and-special-partnership
https://www.politico.eu/article/9-slippery-brexit-pledges/?utm_source=POLITICO.EU&utm_campaign=39a5c3d811-EMAIL_CAMPAIGN_2019_11_01_05_51&utm_medium=email&utm_term=0_10959edeb5-39a5c3d811-190380769
https://ukandeu.ac.uk/the-future-of-the-uk-eu-relationship/?mc_cid=f8b68a972a&mc_eid=815b1928ec
https://rusi.org/sites/default/files/newsbrief_37.3_elliott.pdf