TY  - BOOK
AU  - Bellamy, John C.
TI  - Digital telephony
T2  - Proakis, John G
SN  - 9814126357
U1  - 621.385 B414d3  
PY  - 2003///
CY  - New York
PB  - Wiley
KW  - Digital telephone systems
KW  - Telecommunication
KW  - signal processing
ER  -