https://www.ucl.ac.uk/european-institute/analysis/2016-17/poulsen-investment-policy
https://ukandeu.ac.uk/wp-content/uploads/2024/04/James-Dennison-Europhoria-working-paper-1.pdf
https://www.opendemocracy.net/sam-hufton/treatise-on-european-government-international?utm_source=Daily+Newsletter&utm_campaign=56a87bc735-DAILY_NEWSLETTER_MAILCHIMP&utm_medium=email&utm_term=0_717bc5d86d-56a87bc735-407405485
https://www.socialeurope.eu/romania-and-bulgaria-stuck-in-eus-second-tier