00264nam a2200109Ia 4500008004100000041001200041082001100053100001900064245005900083260000600142650000600148221030s9999    xx            000 0 und d  aEnglish  a105.23  aP. Chakrabarti 0aPrinciples of Digital Communciationcby P. Chakrabarti  c0  aB