Alan, V. Oppenhiem; Nawab, S Hamid; Willsky S. Alan Signals & Systems - 2nd ed. - Boston: Printice Hall. 1997 - 957p. ISBN: 81-203-1246-5 Subjects--Personal Names: Electrical Engineering Subjects--Topical Terms: Telecommunication Engineering Dewey Class. No.: 621.3822 OPP