PT - JOURNAL ARTICLE ED - Bernstein, Peter L. TI - Wanted AID - 10.3905/jpm.1992.1 DP - 1992 Apr 30 TA - The Journal of Portfolio Management PG - 1--1 VI - 18 IP - 3 4099 - https://pm-research.com/content/18/3/1.short 4100 - https://pm-research.com/content/18/3/1.full