PT - JOURNAL ARTICLE AU - Robert H. Jeffrey TI - Internal Portfolio Growth AID - 10.3905/jpm.1977.408613 DP - 1977 Jul 31 TA - The Journal of Portfolio Management PG - 10--15 VI - 3 IP - 4 4099 - https://pm-research.com/content/3/4/10.short 4100 - https://pm-research.com/content/3/4/10.full