1. Ferguson, T.S.: A Bayesian analysis of some nonparametric problems. Ann. Stat. 1, 209–230 (1973)
2. Sethuraman, J.: A constructive definition of Dirichlet priors. Stat. Sinica 4, 639–650 (1994)
3. Engen, S.: A note on the geometric series as a species frequency model. Biometrika 62, 697–699 (1975)
4. MacCloskey, J.W.: A model for the distribution of individuals bu species in an environment. unpublished Ph.D. thesis, Michigan State University (1965)
5. Ewens, W.J.: Population genetics theory—the past and the future. In: Lessard, S. (ed.) Mathematical and Statistical Developments of Evolutionary Theory, pp. 177–227. Kluwer, Amsterdam (1990)