Oppenheim, Alan V., Discrete-time signal processing / Alan V. Oppenheim, Ronald W. Schafer, with John R. Buck. - 2nd ed. - Upper Saddle River, N.J. : Prentice Hall, c1999. - xxvi, 870 p. : ill. ; ISBN: 0137549202 Subjects--Topical Terms: Signal processing--Mathematics.Discrete-time systems. LC Class. No.: TK5102.9 / .O67 1999