1. L. Ahlfors, Complex Analysis, 3rd ed., McGraw-Hill, New York. 1979.
2. N. G. de Bruijn, Asymptotic Methods in Analysis, Dover. New York. 1981.
3. A. de Moivre, Miscellanea Analytica de Seriebus et Quadraturis, London, 1730.
4. Finite Exchangeable Sequences