
https://www.instituteforgovernment.org.uk/sites/default/files/publications/IfG_Brexit_Euro_Court_Justice_WEB.pdf

https://www.brookings.edu/articles/want-ukraine-in-the-eu-youll-have-to-reform-the-eu-too/

http://ukandeu.ac.uk/cancelling-brexit-what-would-happen-if-we-changed-our-mind-about-leaving-the-eu/