00287nam a2200121Ia 4500008004100000020001800041041000800059082001700067100002400084245003100108260001800139300000800157211209s2015    xx            000 0 und d  a9789332550339  aeng  a621.3822 OPP  aOPPENHEIM / SCHAFER  aDIGITAL SIGNAL PROCESSING   bPEARSONc2015  a784