1. Burkhauser, R.V., Butler, J.S., Feng, S., Houtenville, A.J. (2003). Data Appendix: Long Term Trends in Earnings Inequality: What CPS Can Tell Us. Department of Policy Analysis and Management working paper. (May).
2. The changing shape of the nation's income distribution;Jones,2000
3. Polivka, A. (1996). Using Earnings Data from the Current Population Survey After the Redesign. Bureau of Labor Statistics Working paper No. 306.
4. A surge in growing income inequality?;Ryscavage;Monthly Labor Review, August,1995
5. U.S. Census Bureau (2002). Table IE-2: Measures of Individual Earnings Inequality for Full-Time, Year-Round Workers by Sex: 1967 to 2001; published September, http://www.census.gov/hhes/income/histinc/ie2.html.