PT - JOURNAL ARTICLE AU - Robert A. Pari AU - Son-Nan Chen TI - Estimation risk and optimal portfolios AID - 10.3905/jpm.1985.409030 DP - 1985 Oct 31 TA - The Journal of Portfolio Management PG - 40--43 VI - 12 IP - 1 4099 - https://pm-research.com/content/12/1/40.short 4100 - https://pm-research.com/content/12/1/40.full