PT - JOURNAL ARTICLE AU - Thomas M. Tole TI - How to Maximize Stationarity of Beta AID - 10.3905/jpm.1981.408787 DP - 1981 Jan 31 TA - The Journal of Portfolio Management PG - 45--49 VI - 7 IP - 2 4099 - https://pm-research.com/content/7/2/45.short 4100 - https://pm-research.com/content/7/2/45.full