TY  - BOOK
AU  - Oppenheim, Alan V  .
AU  - Buck,John R.
AU  - Schaffer,Ronald W  .
TI  - Discrete time signal processing / 
SN  - 81-7808-244-6
U1  - 621.3822 
PY  - 2002///
CY  -  : 
PB  - Pearson Education Signal Processing , 
ER  -