https://www.esri.ie/system/files/publications/QEC2019SPR_SA_Bergin.pdf
https://cdn.ymaws.com/www.export.org.uk/resource/resmgr/docs/policy_papers/IOE&IT_report_with_EY_TradeT.pdf
https://www.opendemocracy.net/en/opendemocracyuk/customs-union-leaves-everything-play-trade-justice/?utm_source=Daily+Newsletter&utm_campaign=f531c721c4-DAILY_NEWSLETTER_MAILCHIMP&utm_medium=email&utm_term=0_717bc5d86d-f531c721c4-407405485
http://ukandeu.ac.uk/for-the-third-time-we-surveyed-mps-on-their-attitude-to-brexit-and-the-results-were-fascinating/