https://publications.parliament.uk/pa/ld201719/ldselect/ldconst/69/69.pdf
http://www.fdf.org.uk/news.aspx?article=8062
https://centreforbrexitpolicy.org.uk/wp-content/uploads/2020/07/REPLACING-THE-WITHDRAWAL-AGREEMENT-How-to-ensure-the-UK-takes-back-control-on-exiting-the-transition-period-12-July-20.pdf
http://www.ecfr.eu/article/commentary_the_brexit_threat_to_britains_defence_industry