Hopcroft, John E. <br/><br/>
Introduction to Automata Theory Languages and Computation 

 - New Delhi  Narosa Publishing House  2001 
 - p.418 
<br/><br/><label>ISBN: </label>8185015961 
<br/><br/><label>Subjects--Topical Terms: </label> Preliminaries  Undecidability  Oracle Computation 
<br/><br/><label>Dewey Class. No.: </label>621.38195 H791I