00313nam a2200109Ia 4500008004100000041001200041082001100053100001800064245010900082260000600191650000600197221030s9999    xx            000 0 und d  aEnglish  a105.23  aA. B. Carlson 0aCommunication Systems : An Introduction to Signals & Noise in Electrical Communicationcby A. B. Carlson  c0  aB