https://ec.europa.eu/commission/publications/position-paper-transmitted-eu27-judicial-cooperation-civil-and-commercial-matters_en
https://ec.europa.eu/commission/publications/agenda-19-june-meeting-between-eu-and-uk-article-50-negotiations_en
https://centreonconstitutionalchange.ac.uk/sites/default/files/2021-04/Union%20at%20the%20Crossroads.pdf