TY  - BOOK
AU  - Ziegler,Gerhard
ED  - Siemens Aktiengesellschaft.
TI  - Numerical distance protection: principles and application 
SN  - 3895782661
PY  - 2006///
CY  - Munich : 
PB  - Publicis Corporate Pub., 
KW  - Electric power systems
KW  - Protection
KW  - Protective relays
UR  - http://www.loc.gov/catdir/enhancements/fy0810/2006272489-b.html
UR  - http://www.loc.gov/catdir/enhancements/fy0629/2006272489-d.html
UR  - http://www.loc.gov/catdir/enhancements/fy0629/2006272489-t.html
ER  -