
https://www.irishtimes.com/business/financial-services/brexit-shrank-uk-services-exports-by-110bn-academics-find-1.4580394

http://www.conservativehome.com/parliament/2016/04/theresa-mays-speech-on-brexit-full-text.html

https://ukandeu.ac.uk/explainers/the-protocol-on-ireland-northern-ireland/?mc_cid=2bd4dc8e93&mc_eid=815b1928ec