1. Nomographs for Butterworth and Chebyshev filters;Kawakami;IEEE Trans. Circuit Theory,1963
2. Filter Design Tables and Graphs;Christian,1966
3. Handbook of Filter Synthesis;Zverev,1967
4. C.S. Lindquist, Active Network Design with Signal Filtering Applications, Steward & Sons, CA, 1977 (Chapter 4).
5. Nomographs and filters;Hallberg;J. Franklin Inst.,1976