https://cer.org.uk/sites/default/files/bulletin_114_js_st_article1.pdf
https://www.theguardian.com/politics/2018/jul/18/dairy-products-may-become-luxuries-after-uk-leaves-eu
https://www.politico.eu/article/9-slippery-brexit-pledges/?utm_source=POLITICO.EU&utm_campaign=39a5c3d811-EMAIL_CAMPAIGN_2019_11_01_05_51&utm_medium=email&utm_term=0_10959edeb5-39a5c3d811-190380769
https://www.publications.parliament.uk/pa/ld201617/ldselect/ldeucom/169/169.pdf