PT - JOURNAL ARTICLE AU - Peter L. Bernstein TI - 1929 and all that AID - 10.3905/jpm.1975.408511 DP - 1975 Jan 31 TA - The Journal of Portfolio Management PG - 4--5 VI - 1 IP - 2 4099 - https://pm-research.com/content/1/2/4.short 4100 - https://pm-research.com/content/1/2/4.full