PT - JOURNAL ARTICLE AU - James F. Hart TI - The Riskless Option Hedge AID - 10.3905/jpm.1978.408630 DP - 1978 Jan 31 TA - The Journal of Portfolio Management PG - 58--63 VI - 4 IP - 2 4099 - https://pm-research.com/content/4/2/58.short 4100 - https://pm-research.com/content/4/2/58.full