
https://www.swp-berlin.org/publikation/majority-voting-on-foreign-policy-decisions-a-transitional-approach-needs-parliamentary-oversight

https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/650455/customs_bill_white_paper_print.pdf

https://www.niesr.ac.uk/sites/default/files/UK%20Economy%20Press%20Release%20-NIER%20No245%20%20August%202018%20-%20EMBARGOED%20until%2000.01%20Wednesday%201st%20August.pdf