Sleva, Anthony F. <br/><br/>
Protective relay principles 

 - Boca Ration  CRC press  2009 
 - xvii, 349p. 
<br/><br/><label>ISBN: </label>9780824753726 
<br/><br/><label>Subjects--Index Terms: </label>Protective relays 
<br/><br/><label>Universal Decimal Class. No.: </label>621.316.925  / SLE