Turing: The Papers of Alan Mathison Turing, GBR/0272/AMT. Archive Centre, King's College, Cambridge.
Turing: The Papers of Alan Mathison Turing, GBR/0272/AMT. Archive Centre, King's College, Cambridge. https://archivesearch.lib.cam.ac.uk/repositories/7/resources/1193 Accessed March 20, 2023.