00293nam a2200121Ia 4500008004100000020001800041041000800059100001900067245003200086250001100118260002900129300001300158211209s2007    xx            000 0 und d  a9788131710005  aeng  aPROAKIS G JOHN  aDIGITAL SIGNAL  PROCESSING   a4th ed  aNEW DELHIbPEARSONc2007  axix+1136