Krishnan R., <br/><br/>
Permanent Magnet Synchronous and Brushless DC Motor Drives 
R.Krishnan 
 - New York :  CRC Press  c2010. 
 - xxxv,575 p.:  ill.; 
<br/><br/><label>ISBN: </label>9780824753849 
<br/><br/><label>Dewey Class. No.: </label>621.46  / KRI/PER