TY  - BOOK
AU  - Oppenheim, Alen V
TI  - Discrete-time signal processing 
SN  - 81-203-0720-8
U1  - 621.382 2 
PY  - 2009///
CY  - New Delhi
PB  - Pearson Education
KW  - Engineering- Signal processing
N1  - Includes bibliographies and index
ER  -