http://www.diw.de/documents/publikationen/73/diw_01.c.562050.de/17-29.pdf
https://www.bloomberg.com/politics/articles/2017-04-26/brexit-risks-opening-pandora-s-box-of-trade-disputes-for-britain?cmpid=BBBXT042617_BIZ&utm_medium=email&utm_source=newsletter&utm_term=170426&utm_campaign=brexit
https://www.socialeurope.eu/2017/06/mercron-franco-german-tandem-back-berlins-terms/
https://blogs.lse.ac.uk/europpblog/2022/10/13/complicating-the-complicated-what-we-learned-from-bosnia-and-herzegovinas-general-election/