00296nam a22000977a 4500020001800000082001900018100005500037245003800092260005800130300001000188  a9788120312463  a621.3822 OPP/S  aAlan V. Oppenheim, Alan S. Willsky, S. Hamid Nawab  aSignals and Systems (2nd Edition)  bPrentice Hall of India (PHI Learning Pvt. Ltd.)c2008  a957p.