00285nam a2200109Ia 4500008004100000041000800041082001800049100002700067245005100094260002300145365000700168230303s9999    xx            000 0 und d  aeng  a621.38043 IFE  aIFEACHOR (Emmannel. C)  aDigital Signal Processing A practical approach  aNew DelhibPEARSON  cRS