RT Journal Article SR Electronic T1 Investing in the 199Os JF The Journal of Portfolio Management FD Institutional Investor Journals SP 88 OP 91 DO 10.3905/jpm.1991.409386 VO 18 IS 1 A1 John C. Bogle YR 1991 UL https://pm-research.com/content/18/1/88.abstract AB