https://wiiw.ac.at/regulatory-convergence-within-technical-barriers-to-trade-dlp-6630.pdf
https://ecipe.org/wp-content/uploads/2022/05/ECI_22_OccPaper_Defence_04_2022_LY10.pdf
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/878352/Freeports_Consultation_Extension.pdf
https://publications.parliament.uk/pa/ld5801/ldselect/ldeucom/248/248.pdf