00254nam a2200097Ia 4500008004100000082001900041100001800060245003600078260002700114300001500141240817s9999    xx            000 0 und d  a621.3822 op1,d  aOppenheim,A,V 0aDiscrete-time singal processing  c1994a New delhib PHI  axv, 879 p.