
http://www.ecfr.eu/page/-/ECFR-_245_-_Crisis_and_Cohesion_-_A_10_Year_Review_Janning_WEB.pdf

https://ukandeu.ac.uk/dissatisfaction-with-democracy-in-croatia/

http://www.cesifo-group.de/portal/page/portal/DocBase_Service/studien/Studie-2017-Felbermayr-etal-Brexit-79843.pdf