Ziegler, R <br/><br/>
Numerical distance protection 4th ed. 

 - 4th edition 
 - Germany :  Publicis,Pub,  2011. 
 - 419 
<br/><br/><label>ISBN: </label>978-3-89578-381-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrical Electronics Communication,
<br/><br/><label>Dewey Class. No.: </label>621.317  / ZIE