William Boyd: The secret persuaders. It was 1940, the Nazis were in the ascendant, the Blitz at its deadliest, and Britain's last hope was to bring a reluctant United States into the war. So it was that the largest covert operation in UK history was launched. William Boyd sheds light on a forgotten spy ring. 19. August 2006, abgerufen am 12. Mai 2023 (englisch).