PT - JOURNAL ARTICLE AU - Peter C. Ho AU - Alfred S. Paulson TI - Portfolio selection via factor analysis AID - 10.3905/jpm.1980.408750 DP - 1980 Apr 30 TA - The Journal of Portfolio Management PG - 27--30 VI - 6 IP - 3 4099 - https://pm-research.com/content/6/3/27.short 4100 - https://pm-research.com/content/6/3/27.full