http://www.oxera.com/Latest-Thinking/Publications/Reports/2017/Brexit-ports.aspx
https://www.publications.parliament.uk/pa/cm201617/cmselect/cmbeis/909/909.pdf
https://www.nao.org.uk/wp-content/uploads/2022/05/Regulating-after-EU-Exit.pdf
https://institute.global/sites/default/files/2020-07/Tony%20Blair%20Institute%2C%20A%20Path%20to%20Brexit%20Agreement%2C%20July%202020.pdf