| ID: | 13109 |
|---|---|
| Entry Text: | Kippenhahn, Rudolf. Code Breaking: A History and Exploration. New York: Overlook, 1999, 2000, 283 pp. Trans: Ewald Osers; from Mary, Queen of Scots, Room 40, Zimmermann Telegram, Enigma, Bletchley Park, Japanese signals in Berlin. |