https://www.theguardian.com/politics/2017/apr/19/gina-miller-best-for-britain-tactical-voting-against-hard-brexit?CMP=share_btn_link
https://www.la-croix.com/Monde/Miroslav-Lajcak-Ne-pas-penser-migration-comme-probleme-court-terme-2017-11-01-1200888652
http://library.fes.de/pdf-files/bueros/budapest/15322-20190505.pdf