1. M. Abramowitz and I.A. Stegun, Handbook of Mathematical Functions with Formulae, Graphs and Mathematical Tables, National Bureau of Standards, 1964.
2. V.M. Adamjan, D.Z. Arove and M.G. Krein, “Analytic properties of Schmidt pairs for Hankel operator and the generalized Schur-Takagi problem,” Math.USSR Sbornik, vol. 15, pp. 15–73, 1971.
3. ibid, “Infinite block Hankel matrices and related extension problems,” AMS Trans., vol. 111, pp. 133–156, 1978.
4. S. Alliney and F. Sgallari, “Chebyshev approximation of recursive digital filters,” Signal Processing, vol. 2, pp. 317–321, 1980.
5. A. Antoniou, Digital Filters: Analysis, Design, and Applications, McGraw-Hill, 1993.