TY  - GEN
AU  - Oppenheim, Alan V
AU  - Schafer, Ronald W 
TI  - Discrete-time signal processing/2nd ed
SN  - 8178082446
U1  - 621.391 
PY  - 1999///
CY  - New Delhi
PB  - Perarson
KW  - 621.391
ER  -