David F. Swensen (2009). “Pioneering Portfolio Management: An Unconventional Approach to Institutional Investment, Fully Revised and Updated”, p.8, Simon and Schuster
"Smart Advice for the HuffPost Investor : The System Is Rigged Against You, Can You Beat the Odds Or Should You Stay On the Sidelines?" by Dan Solin, www.huffingtonpost.com. February 27, 2008.