1. INSTITUTE OF PERSONNEL MANAGEMENT CONFERENCE — 21–23 OCTOBER 1987
2. Determining Withdrawal Rates Using Historical Data;W T Bengen;Journal of Financial Planning,1994
3. Conserving Client Portfolios during Retirement, Part III;W T Bengen;Journal of Financial Planning,1997
4. Conserving Client Portfolios during Retirement, Part IV;W T Bengen;Journal of Financial Planning,2001
5. Unbiased Estimators of Long-Run Expected Rates of Return;M E Blume;Journal of the American Statistical Association,1974