
https://uk.reuters.com/article/uk-britain-eu-options/stairway-to-brexit-barnier-maps-out-uks-canadian-path-idUKKBN1ED23R

https://library.fes.de/pdf-files/international/20258.pdf

http://ecdpm.org/wp-content/uploads/Charting-the-course-to-2020-Fundamental-choices-for-the-negotiation-of-a-future-ACP-EU-partnership-Medinillla-Bossuyt-ECDPM.pdf