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

https://www.politico.eu/article/time-for-brexit-reckoning-uk-eu-relationship/

https://cer.org.uk/sites/default/files/bulletin_114_js_st_article1.pdf