TY  - GEN
AU  - Ram, Badri 
AU  - Vishwakarma, D N 
TI  - Power system protection and switchgear
SN  - 978-0-07-107774-3
PY  - 2011///
CY  - New Delhi
PB  - McGraw-Hill
KW  - Protective relays
KW  - Power System
UR  - http://mcgrawhilleducation.pdn.ipublishcentral.com/pdfreader/power-system-protection-switchgear50002502
ER  -