Signals and linear systems / Robert A. Gabel, Richard A. Roberts. Gabel, Robert A. Roberts, Richard A., 1935- Electric network analysis. Linear systems. TK454.2 .G22 1987 620.72 19 GAS Includes index. Bibliography: p. 441-443. New York : Wiley, c1987. c1987. 1987 Text xvii, 470 p. http://www.loc.gov/catdir/description/wiley031/86007748.html http://www.loc.gov/catdir/toc/onix01/86007748.html eng