Gordon, Rob «Navy spy probe kept military in dark: documents». Canadian Broadcasting Corporation [Consulta: 20 octubre 2013]. «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.»
«Newly released GCHQ files: UKUSA Agreement». The National Archives, 01-06-2010. Arxivat de l'original el 26 juny 2010. [Consulta: 25 juny 2010]. «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.»
«Newly released GCHQ files: UKUSA Agreement». The National Archives, 01-06-2010. Arxivat de l'original el 26 juny 2010. [Consulta: 25 juny 2010]. «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.»
