Ziegler, Gerhard,  1939- <br/><br/>
Numerical distance protection :  principles and application / Gerhard Ziegler ; [editor, Siemens AG]. 

 - 3rd ed. 
 - Munich :  Publicis Corp. Pub.,  2008. 
 - 406 p. :  ill. ;  26 cm. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9783895783180 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric power systems--Protection.<br/>Protective relays.