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

 - 2 ed. 
 - Delhi  Pearson Education  2004 
 - p.521 
<br/><br/><label>ISBN: </label>8178083477 
<br/><br/><label>Subjects--Topical Terms: </label> Finite Automata  Deductive Proofs  Strings  Lexical Analysis 
<br/><br/><label>Dewey Class. No.: </label>621.38195 H81