https://ec.europa.eu/commission/sites/beta-political/files/use-data-protection-information_en.pdf
https://ukandeu.ac.uk/destructive-ambiguity-northern-ireland-the-union-and-the-windsor-framework/
https://ukandeu.ac.uk/universities-and-brexit-past-present-and-future/#
https://www.bertelsmann-stiftung.de/de/themen/aktuelle-meldungen/2019/maerz/brexit-kostet-deutschland-bis-zu-zehn-milliarden-euro-jaehrlich/