https://www.gov.uk/government/news/uk-eu-agreement-in-respect-of-gibraltar-joint-statement
https://www.ifri.org/sites/default/files/atoms/files/d._puhl_vfa_33_deutschland_die_zeitenwende_und_die_zukunft_de.pdf
https://wiiw.ac.at/navigating-trade-restrictions-dlp-6810.pdf
https://www.cfr.org/backgrounder/who-governs-palestinians