00294nam a2200121Ia 4500008004100000041001200041082001100053100001100064245006700075260000600142650000600148700001800154221030s9999    xx            000 0 und d  aEnglish  a105.23  aJ. Das 0aPrinciples of Digital Communicationscby J. Das, S. K. Mullick  c0  aB  aS. K. Mullick