«Gevork Vartanyan». The Telegraph. 2012 թ․ հունվարի 11. Վերցված է 2014 թ․ դեկտեմբերի 27-ին. «Gevork Vartanyan, who has died aged 87, worked for Soviet intelligence for more than half a century and played an important part in thwarting a Nazi plot to assassinate Churchill, Stalin and President Roosevelt at the Tehran Conference in 1943.»
