https://www.cesifo-group.de/DocDL/ifoDD_18-01_03-09_Ochsner.pdf
https://ec.europa.eu/commission/sites/beta-political/files/police_judicial_cooperation_in_criminal_matters_0.pdf
https://www.opendemocracy.net/uk/gavin-barker/brexit-means-progressive-alliances-or-corporate-absolutism?utm_source=Daily+Newsletter&utm_campaign=d40bbfc4f2-DAILY_NEWSLETTER_MAILCHIMP&utm_medium=email&utm_term=0_717bc5d86d-d40bbfc4f2-407405485
https://www.nato.int/en/about-us/official-texts-and-resources/official-texts/2008/04/03/bucharest-summit-declaration