00425nam a2200157Ia 4500008004100000020001800041082001600059100002500075245003700100250000800137260004200145300002400187500000700211600003400218650001500252240925s9999    xx            000 0 und d  a9789332518490  a621.382 PHI  aPhillips ,Charles L. 0aSignals, Systems, and Transforms  a4th  aNew Delhi:bPearson Educationc,2014.  a843p.bNAfOriginal  aNA  aTelecommunication Engineering  aTechnology