Tunnetaan myös nimellä Quadripartite Agreement tai Quadripartite Pact (EPIC, Privacy International: Privacy and Human Rights 2002: An International Survey of Privacy Rights and Developments, s. 100. Epic, 2002, 2002. ISBN 1-893044-16-5Teoksen verkkoversio. (englanniksi))
cbc.ca
Rob Gordon: Navy spy probe kept military in dark: documents Canadian Broadcasting Corporation. ”The military's fears were well-founded, given Delisle had access to terabytes of some of the Western world's most closely guarded secrets. He operated a computer system called Stone Ghost, which links the intelligence services of the Five Eyes: the United States, Britain, Canada, Australia and New Zealand.” (englanniksi)
Newly released GCHQ files: UKUSA Agreement 2010, kesäkuu. The National Archives. ”The files contain details of the recently avowed UKUSA Agreement – the top secret, post-war arrangement for sharing intelligence between the United States and the UK. Signed by representatives of the London Signals Intelligence Board and its American counterpart in March 1946, the UKUSA Agreement is without parallel in the Western intelligence world and formed the basis for co-operation between the two countries throughout the Cold War.”
Nathan Smith: The world of signals intelligence and GCSB in context National Business Review. Arkistoitu 3.7.2013. ”A partnership with various telecommunications industries has secured access to the internet for the UKUSA signals agencies. All traffic on the internet and via emails is reportedly captured and stored.” Viitattu 11.9.2014. (englanniksi)
Nathan Smith: The world of signals intelligence and GCSB in context National Business Review. Arkistoitu 3.7.2013. ”A partnership with various telecommunications industries has secured access to the internet for the UKUSA signals agencies. All traffic on the internet and via emails is reportedly captured and stored.” Viitattu 11.9.2014. (englanniksi)
