TY  - BOOK
AU  - Ziegler,Gerhard
TI  - Numerical distance protection: principles and applications 
SN  - 9783895783814 (hbk.)
PY  - 2011///
CY  - Erlangen
PB  - Publicis Publishing
KW  - Electric power systems
KW  - Protection
KW  - Protective relays
N1  - Includes bibliographical references (p. 364-371 ) and index
ER  -