
https://ukandeu.ac.uk/energy-security-and-industrial-strategy-uk-and-eu-divergence/

https://www.nao.org.uk/wp-content/uploads/2017/07/The-Customs-Declaration-Service.pdf

http://www.abpi.org.uk/media/4575/uk-exiting-from-eu_life-science-industry-coalition_position-paper.pdf