TY  - BOOK
AU  - Ziegler, Gerhard
TI  - Numerical distance protection: principles and applications
SN  - 3895783180
U1  - 621.317 
PY  - 2008///
CY  - Erlangen
PB  - Publicis Corporate Publishing
KW  - Protective relays
KW  - Electric power systems-Protection
ER  -