https://www.socialeurope.eu/romania-and-bulgaria-stuck-in-eus-second-tier
https://www.socialeurope.eu/2017/06/theresa-mays-other-citizens-of-nowhere/
https://euagenda.eu/upload/publications/untitled-124549-ea.pdf
https://www.ips-journal.eu/topics/foreign-and-security-policy/time-for-european-sovereignty-6365/?utm_campaign=en_1056_20221206&utm_medium=email&utm_source=newsletter