TY  - BOOK
AU  - Alencar, Marcelo S.
AU  - Rocha, Valdemar C. da
TI  - Communication systems
SN  - 9788181287168
U1  - 621.382 Al25c 
PY  - 2005///
CY  - New Delhi
PB  - Springer (India)
KW  - Signal processing
KW  - Digital techniques
ER  -