00599nam a22001577a 4500008004100000020001800041040005500059080001800114100002100132245013400153260003500287300001700322490006900339650001300408653002000421230607b        |||||||| |||| 00| 0 eng d  a9780262230919  aNational Science LibrarycNational Science Library  a621.391-5bL9  aWillsky, Alan S   aDigital signal processing and control and estimation theory: bPoints of tangency, areas of intersection, and parallel directions  aCambridge: bMIT Press, c1979  axiii, 256p.   aMIT Press series in signal processing, optimization, and control  aScience   aDigital signal