PT - JOURNAL ARTICLE AU - Richard J. Rogalski TI - Variances and Option Prices in Theory and Practise AID - 10.3905/jpm.1978.408631 DP - 1978 Jan 31 TA - The Journal of Portfolio Management PG - 43--51 VI - 4 IP - 2 4099 - https://pm-research.com/content/4/2/43.short 4100 - https://pm-research.com/content/4/2/43.full