Berstel, Jean <br/><br/>
Noncommutative Rational Series with Applications   
by Jean Berstel and Christophe Reutenauer 
 - Cambridge  Cambridge University Press  2011 
 - xiii,248p 
 - Encyclopedia of mathematics and its Applications No.137 .
<br/><br/><label>ISBN: </label>9780521190220 
<br/><br/><label>Dewey Class. No.: </label>511.35  / P11