TY  - BOOK
AU  - Math H.J.Bollen
TI  - Understanding Power Quality Problems (Voltage Sags and Interruptions)
SN  - 9788126530397
U1  - 621.31042 
PY  - 2013///
CY  - New Delhi
PB  - J.Wiley
KW  - Electrical
N1  - Quantity Number:  4
ER  -