Shasha, Dennis, <br/><br/>
Out of their minds:   the lives and discoveries of 15 great computer scientists / 
Dennis Shasha, Cathy Lazere. 
 - New York :  Copernicus,  1995. 
 - 291 pages :   illustrations ;   24 cm. 
<br/><br/>p. 269-278. 
<br/><br/><label>ISBN: </label>0387979921  RM69.18 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer security--Bibliography.<br/>Computers--History.