Protocol No. 3 on the Sovereign Base Areas of the United Kingdom of Great Britain and Northern Ireland in CyprusArchived 13 November 2020 at the Wayback Machine, Act concerning the conditions of accession of the Czech Republic, the Republic of Estonia, the Republic of Cyprus, the Republic of Latvia, the Republic of Lithuania, the Republic of Hungary, the Republic of Malta, the Republic of Poland, the Republic of Slovenia and the Slovak Republic and the adjustments to the Treaties on which the European Union is founded, EUR-Lex, 23 September 2003.
Erskine, Daniel H (2006). "The United States-EC Dispute Over Customs Matters: Trade Facilitation, Customs Unions, and the Meaning of WTO Obligations". Florida Journal of International Law. 18: 432–485. SSRN987367.
Protocol No. 3 on the Sovereign Base Areas of the United Kingdom of Great Britain and Northern Ireland in CyprusArchived 13 November 2020 at the Wayback Machine, Act concerning the conditions of accession of the Czech Republic, the Republic of Estonia, the Republic of Cyprus, the Republic of Latvia, the Republic of Lithuania, the Republic of Hungary, the Republic of Malta, the Republic of Poland, the Republic of Slovenia and the Slovak Republic and the adjustments to the Treaties on which the European Union is founded, EUR-Lex, 23 September 2003.