Bauer, Friedrich Ludwig <br/><br/>
Decrypted secrets; methods and maxims of cryptology   

 - 2nd rev and extended 
 - Berlin  Springer-Verlag  2000 
 - xii, 470p. Bibl. Index 
<br/><br/>  
<br/><br/><label>ISBN: </label>3540668713 
<br/><br/><label>Dewey Class. No.: </label>518.1  / B344.DS