1. The real Enigma heroes. ([2008]) Authors: Shanahan, Phil Record Type: Book Extent: 1 online resource (264 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. X, Y & Z : the Real Story of How Enigma Was Broken /: the Real Story of How Enigma Was Broken. (2021) Authors: Turing, Dermot Record Type: Book Extent: 1 online resource View Content: Available online (eLD content is only available in our Reading Rooms) ↗