References
- Chow , Y. S. and Studden , W. J. 1969 . “Monotonocity of the Variance Under Truncations and Variations of Jensen's Inequality,” . Annals of Mathematical Statistics , 40 June : 1106 – 8 .
- Gastwirth , J. L. 1972 . “The Estimation of the Lorenz Curve and Index,” . Review of Economics and Statistics , August : 306 – 16 .
- Krieger , A. M. 1974 . “Bounds on Moments and Percentiles from Grouped Data,” , Cambridge , Mass. : Harvard University . Unpublished thesis