TY  - BOOK
AU  - Happ, H.H.
TI  - Piecewise methods and applications to power systems
SN  - 0471351318
U1  - 621.31 
PY  - 1980///
CY  - New York
PB  - ; John Wiley
KW  - Electric Power
KW  - Electrical Engineering
KW  - Engineering
ER  -