
http://en.euabc.com/upload/rfConstitution_en.pdf

https://blogs.lse.ac.uk/europpblog/2023/02/06/is-a-breakthrough-in-serbia-kosovo-negotiations-finally-possible/

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