1. Pareto distributions;Arnold,1985
2. Arnold, B. C., & Laguna, L. (1977). On generalized Pareto distributions with applications to income data. International Studies in Economics (Vol. 10) . Ames, IO: Department of Economics, Iowa State University.
3. Atkinson, A. B. (1970). On the measurement of inequality. Journal of Economic Theory, 2, 244–263 (Reprinted in: A. B. Atkinson (Ed.) (1973). Wealth, income and inequality (pp. 46–68). Harmondsworth: Penguin).
4. Introduction to probability and mathematical statistics;Bain,1992
5. Informetric distributions, Part I: Unified overview;Bookstein;Journal of the American Society for Information Science,1990