There had been mentions of Enigma decryption in earlier books by Władysław Kozaczuk, Ladislas Farago, and Gustave Bertrand.
Władysław Kozaczuk, Enigma: How the German Machine Cipher Was Broken, and How It Was Read by the Allies in World War Two, edited and translated by Christopher Kasparek, Frederick, MD, University Publications of America, 1984, pp.
Kozaczuk, Władysław, Enigma: How the German Machine Cipher Was Broken, and How It Was Read by the Allies in World War Two, edited and translated by Christopher Kasparek, Frederick, MD, University Publications of America, 1984, ISBN 0-89093-547-5.
Władysław Kozaczuk | Władysław Sikorski | Władysław I the Elbow-high | Władysław Gomułka | Władysław Tatarkiewicz | Władysław Anders | Władysław Reymont | Władysław Pachulski | Władysław Pasikowski | Władysław Musiał | Władysław IV Vasa | Władysław III of Poland | Władysław Grabski | Władysław Niegolewski | Władysław Łuszczkiewicz | Władysław I Herman | Władysław Czartoryski | Władysław Bortnowski | Władysław Zamoyski | Władysław Taczanowski | Władysław Szpilman | Władysław Syrokomla | Władysław's Opera Hall Building (right) at the Royal Castle in Warsaw | Władysław Ślebodziński | Władysław Raczkiewicz | Władysław Opolski | Władysław of Bytom | Władysław Markiewicz | Władysław Leon Sapieha | Władysław Dworaczek |
Władysław Kozaczuk, Enigma: How the German Machine Cipher Was Broken, and How It Was Read by the Allies in World War Two, edited and translated by Christopher Kasparek, Frederick, MD, University Publications of America, 1984, ISBN 0-89093-547-5.
Władysław Kozaczuk, Enigma: How the German Machine Cipher Was Broken, and How It Was Read by the Allies in World War Two, edited and translated by Christopher Kasparek, Frederick, MD, University Publications of America, 1984.
Władysław Kozaczuk, Enigma: How the German Machine Cipher Was Broken, and How It Was Read by the Allies in World War II, edited and translated by Christopher Kasparek, Frederick, MD, University Publications of America, 1984.