Peter, J.Denning <br/><br/>
Computers under attack,intruders,worms and viruses 

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 -  Addison-Wesley Publishing  1990 
 - 113 
<br/><br/>  
<br/><br/><label>ISBN: </label>0-201-53067 
<br/><br/><label>Dewey Class. No.: </label>004.491.22