
https://ec.europa.eu/commission/publications/agenda-19-june-meeting-between-eu-and-uk-article-50-negotiations_en

http://ukandeu.ac.uk/wp-content/uploads/2017/06/One-year-on.pdf

https://blogs.sussex.ac.uk/uktpo/2018/02/15/sustainability-impact-assessment-for-post-brexit-britain/