
https://ukandeu.ac.uk/boris-johnsons-brexit-deal-whats-in-it-and-how-is-it-different-to-theresa-mays-version/

https://bdi.eu/media/user_upload/20171005_Pressemitteilung_Brexit.pdf

https://www.robert-schuman.eu/en/doc/entretiens-d-europe/ee-100-en.pdf