TY  - BOOK
AU  - Oppenheim, Alan, V Schafer, Ronald, W 
TI  - Digital signal processing 
SN  - 81-203-0532-9 
U1  - 621.3822 OPP  
PY  - 2002///
CY  - Prentice hall of india 
PB  - New Delhi 
KW  - SIGNAL PROCESSING
ER  -