TY  - BOOK
AU  - Oppenheim, Alan V
AU  - Nawab, Hamid S
AU  - Willsky, Alan S
TI  - Signals and  systems 
SN  - 9789332550230
U1  - 621.3822 OPP 
PY  - 2023///
CY  - New Delhi: 
PB  - Pearson, 
KW  - Digital filters
KW  - Signals and systems
ER  -