
http://blogs.sussex.ac.uk/uktpo/files/2017/11/Briefing-Paper-11.pdf

https://institute.global/news/customs-and-exiting-european-union

http://www.imf.org/en/News/Articles/2017/05/12/ms051217-ireland-staff-concluding-statement-of-the-2017-article-iv-consultation