https://share.trin.cam.ac.uk/sites/public/Comms/Rogers_brexit_as_revolution.pdf
https://publications.parliament.uk/pa/cm201719/cmselect/cmexeu/935/935.pdf
https://ec.europa.eu/commission/sites/beta-political/files/aviation.pdf
https://www.cips.org/en/news/news/businesses-preparing-to-sever-supply-chain-ties-between-the-uk-and-the-eu-to-avoid-brexit-tariffs/