PT - JOURNAL ARTICLE ED - Bernstein, Peter L. TI - dead-or Alive and Well? AID - 10.3905/jpm.1981.4 DP - 1981 Jan 31 TA - The Journal of Portfolio Management PG - 4--4 VI - 7 IP - 2 4099 - https://pm-research.com/content/7/2/4.short 4100 - https://pm-research.com/content/7/2/4.full