TY  - BOOK
AU  - Ziegler,Gerhard
TI  - Numerical distance protection: principles and applications 
SN  - 9783895783180
AV  - TK2861  .Z43 2008
PY  - 2008///
CY  - Erlangen
PB  - Publicis Corporate
KW  - Electric power systems
KW  - Protection
KW  - Protective relays
ER  -