Heinz Billing: Ein Leben zwischen Forschung und Praxis. Selbstverlag F. Genscher, Düsseldorf 1997, S.156; wiedergegeben nach Herbert Bruderer: Konrad Zuse und die Schweiz: Wer hat den Computer erfunden? Oldenbourg Wissenschaftsverlag, München 2012, ISBN 978-3-486-71665-8, S.64, (online).
Großbritannien startet eigenes Austausch-Programm.Über das neue Turingprogramm sollen Tausende Briten weltweit studieren. Sie können unter vielen Partnerländern wählen.4.August 2021,abgerufen am 7.Juni 2023.
Jack Schofield: No 10 apologises for “appalling” treatment of Alan Turing. In: The Guardian, 11. September 2009. Originalzitat: “It is no exaggeration to say that, without his outstanding contribution, the history of World War Two could well have been very different. He truly was one of those individuals we can point to whose unique contribution helped to turn the tide of war. The debt of gratitude he is owed makes it all the more horrifying, therefore, that he was treated so inhumanely. So on behalf of the British government and all those who live freely thanks to Alan’s work, I am very proud to say: we’re sorry, you deserved so much better.”
Press Association:GCHQ chief apologises for 'horrifying' treatment of Alan Turing.In:The Guardian.16.April 2016,abgerufen am 16.April 2016(englisch):„I am happy to do so today and to say how sorry I am that he and so many others were treated in this way, right up until the 1990s, when the policy was rightly changed. The fact that it was common practice for decades reflected the intolerance of the times and the pressures of the cold war, but it does not make it any less wrong and we should apologise for it. Their suffering was our loss and it was the nation’s loss too because we cannot know what Ian and others who were dismissed would have gone on to do and achieve. We did not learn our lesson from Turing.“
