The German Enigma cipher machine / 
[edited by] Brian J. Winkel ... [et al.] 
 - Boston :  Artech House,  2005 
 - x, 439 p. :  ill. ;  26 cm. 
 - Artech House computer security .
 - Artech House computer security series .
<br/><br/> Reprints of papers originally published in Cryptologia 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>1580539963 (alk. paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Enigma cipher system<br/>ULTRA (Intelligence system)<br/>World War, 1939-1945--Cryptography<br/>World War, 1939-1945--Electronic intelligence--Germany<br/>World War, 1939-1945--Electronic intelligence--Great Britain<br/>World War, 1939-1945--Secret service--Great Britain