00320nam a2200121Ia 4500008004100000041001200041082001100053100001200064245006900076260002500145650000800170700002000178221030s9999    xx            000 0 und d  aEnglish  a105.23  aH. Taub 0aPrinciples of Communication Systemscby H. Taub, D. L. Schilling  bTMHaNew Delhic1991  aECE  aD. L. Schilling