1. Determining Withdrawal Rates Using Historical Data;William P Bengen;Journal of Financial Planning,1994
2. Optimal Withdrawal Strategy for Retirement Income Portfolios;David Blanchett;Retirement Management Journal,2012
3. The 4 Percent Rule is Not Safe in a Low-Yield World;Michael S Finke;Available at SSRN,2013
4. Risky Curves: From Unobservable Utility to Observable Opportunity Sets