1. R. P. Brent and H. T. Kung: O((n log n)3/2) algorithms for composition and reversion of power series. Computer Science Department, Carnegie-Mellon University, May 1975.
2. J. W. Cooley, P. A. W. Lewis, and P. D. Welch: The fast Fourier transform algorithm and its applications. Research paper RC-1743, IBM Research.
3. J. W. Cooley, P. A. W. Lewis, and P. D. Welch: Historical notes on the fast Fourier transform. Proc. IEEE 55, 1675–1677 (1967).
4. J. W. Cooley and J. W. Tukey: An algorithm for the machine calculation of complex Fourier series. Math. Comp. 19, 297–301 (1965).
5. D. Gaier: Konstruktive Methoden der konformen Abbildung. Springer Tracts in Natural Philosophy, Vol. 3. Springer, Berlin 1964.