Berstel, Jean <br/><br/>
Noncommutative rational series with applications / 
Jean Berstel, Christophe Reutenauer 
 - New York :  Cambridge University Press,  c2011 
 - xiii, 248 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780521190220 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Machine theory<br/>Noncommutative algebras