00345nam a2200133Ia 4500008004100000020001500041041001200056082001600068100001900084245005900103260003300162300000800195650000800203221030s9999    xx            000 0 und d  a8177000225  aEnglish  a105.23bCha  aP. Chakrabarti 0aPrinciples of Digital Communicationcby P. Chakrabarti  bDhanpat Rai PubaIndiac2001  a402  aECE